Update readme with release dates
Update readme with release dates

markwalkom/elasticsearch,Collaborne/elasticsearch-mapper-attachments,xuzha/elasticsearch,henakamaMSFT/elasticsearch,ricardocerq/elasticsearch,fred84/elasticsearch,mapr/elasticsearch,gfyoung/elasticsearch,strapdata/elassandra,rajanm/elasticsearch,naveenhooda2000/elasticsearch,coding0011/elasticsearch,MaineC/elasticsearch,tebriel/elasticsearch,ESamir/elasticsearch,JervyShi/elasticsearch,AndreKR/elasticsearch,awislowski/elasticsearch,markwalkom/elasticsearch,PhaedrusTheGreek/elasticsearch,jpountz/elasticsearch,IanvsPoplicola/elasticsearch,kaneshin/elasticsearch,jbertouch/elasticsearch,yanjunh/elasticsearch,dongjoon-hyun/elasticsearch,mohit/elasticsearch,bawse/elasticsearch,wbowling/elasticsearch,masaruh/elasticsearch,gmarz/elasticsearch,davidvgalbraith/elasticsearch,spiegela/elasticsearch,markharwood/elasticsearch,jpountz/elasticsearch,qwerty4030/elasticsearch,shreejay/elasticsearch,jbertouch/elasticsearch,nilabhsagar/elasticsearch,yynil/elasticsearch,cwurm/elasticsearch,Shepard1212/elasticsearch,ZTE-PaaS/elasticsearch,mmaracic/elasticsearch,uschindler/elasticsearch,nknize/elasticsearch,mikemccand/elasticsearch,LeoYao/elasticsearch,polyfractal/elasticsearch,masaruh/elasticsearch,shreejay/elasticsearch,njlawton/elasticsearch,rhoml/elasticsearch,coding0011/elasticsearch,ivansun1010/elasticsearch,ggchangan/elasticsearch-mapper-attachments,umeshdangat/elasticsearch,ivansun1010/elasticsearch,jbertouch/elasticsearch,mjason3/elasticsearch,dongjoon-hyun/elasticsearch,camilojd/elasticsearch,kalimatas/elasticsearch,sreeramjayan/elasticsearch,tebriel/elasticsearch,xuzha/elasticsearch,i-am-Nathan/elasticsearch,nomoa/elasticsearch,markharwood/elasticsearch,ESamir/elasticsearch,umeshdangat/elasticsearch,gingerwizard/elasticsearch,PhaedrusTheGreek/elasticsearch,vroyer/elassandra,maddin2016/elasticsearch,JervyShi/elasticsearch,wenpos/elasticsearch,polyfractal/elasticsearch,nknize/elasticsearch,dongjoon-hyun/elasticsearch,masaruh/elasticsearch,gmarz/elasticsearch,girirajsharma/elasticsearch,gingerwizard/elasticsearch,episerver/elasticsearch,rmuir/elasticsearch,sneivandt/elasticsearch,gfyoung/elasticsearch,ivansun1010/elasticsearch,myelin/elasticsearch,ivansun1010/elasticsearch,nezirus/elasticsearch,Collaborne/elasticsearch-mapper-attachments,rmuir/elasticsearch-mapper-attachments,martinstuga/elasticsearch,jchampion/elasticsearch,martinstuga/elasticsearch,glefloch/elasticsearch,mapr/elasticsearch,vroyer/elassandra,IanvsPoplicola/elasticsearch,winstonewert/elasticsearch,gingerwizard/elasticsearch,i-am-Nathan/elasticsearch,yynil/elasticsearch,Shepard1212/elasticsearch,mmaracic/elasticsearch,rmuir/elasticsearch,Stacey-Gammon/elasticsearch,gingerwizard/elasticsearch,pozhidaevak/elasticsearch,xuzha/elasticsearch,AndreKR/elasticsearch,Shepard1212/elasticsearch,alexshadow007/elasticsearch,wenpos/elasticsearch,qwerty4030/elasticsearch,nezirus/elasticsearch,obourgain/elasticsearch,F0lha/elasticsearch,IanvsPoplicola/elasticsearch,ZTE-PaaS/elasticsearch,jimczi/elasticsearch,ESamir/elasticsearch,ricardocerq/elasticsearch,tebriel/elasticsearch,wuranbo/elasticsearch,andrejserafim/elasticsearch,andrejserafim/elasticsearch,myelin/elasticsearch,naveenhooda2000/elasticsearch,rhoml/elasticsearch,wangtuo/elasticsearch,vroyer/elasticassandra,diendt/elasticsearch,LewayneNaidoo/elasticsearch,bawse/elasticsearch,kaneshin/elasticsearch,ricardocerq/elasticsearch,JSCooke/elasticsearch,vroyer/elasticassandra,dpursehouse/elasticsearch,PhaedrusTheGreek/elasticsearch,wuranbo/elasticsearch,mikemccand/elasticsearch,ThiagoGarciaAlves/elasticsearch,davidvgalbraith/elasticsearch,strapdata/elassandra5-rc,gmarz/elasticsearch,strapdata/elassandra,s1monw/elasticsearch,Stacey-Gammon/elasticsearch,palecur/elasticsearch,mohit/elasticsearch,liweinan0423/elasticsearch,camilojd/elasticsearch,JackyMai/elasticsearch,brandonkearby/elasticsearch,jchampion/elasticsearch,glefloch/elasticsearch,mortonsykes/elasticsearch,nazarewk/elasticsearch,MaineC/elasticsearch,naveenhooda2000/elasticsearch,spiegela/elasticsearch,jbertouch/elasticsearch,tebriel/elasticsearch,ZTE-PaaS/elasticsearch,MisterAndersen/elasticsearch,dongjoon-hyun/elasticsearch,elasticdog/elasticsearch,mapr/elasticsearch,s1monw/elasticsearch,gingerwizard/elasticsearch,avikurapati/elasticsearch,rhoml/elasticsearch,ThiagoGarciaAlves/elasticsearch,mortonsykes/elasticsearch,spiegela/elasticsearch,glefloch/elasticsearch,shreejay/elasticsearch,rmuir/elasticsearch,rlugojr/elasticsearch,episerver/elasticsearch,uschindler/elasticsearch,fred84/elasticsearch,winstonewert/elasticsearch,LewayneNaidoo/elasticsearch,njlawton/elasticsearch,markwalkom/elasticsearch,JackyMai/elasticsearch,wenpos/elasticsearch,henakamaMSFT/elasticsearch,strapdata/elassandra,masaruh/elasticsearch,GlenRSmith/elasticsearch,markharwood/elasticsearch,spiegela/elasticsearch,episerver/elasticsearch,rajanm/elasticsearch,avikurapati/elasticsearch,mikemccand/elasticsearch,StefanGor/elasticsearch,Stacey-Gammon/elasticsearch,wangtuo/elasticsearch,coding0011/elasticsearch,winstonewert/elasticsearch,alexshadow007/elasticsearch,gfyoung/elasticsearch,ESamir/elasticsearch,JervyShi/elasticsearch,davidvgalbraith/elasticsearch,coding0011/elasticsearch,umeshdangat/elasticsearch,nezirus/elasticsearch,a2lin/elasticsearch,jprante/elasticsearch,clintongormley/elasticsearch,wuranbo/elasticsearch,palecur/elasticsearch,fred84/elasticsearch,robin13/elasticsearch,sreeramjayan/elasticsearch,jbertouch/elasticsearch,trangvh/elasticsearch,ivansun1010/elasticsearch,jimczi/elasticsearch,geidies/elasticsearch,nilabhsagar/elasticsearch,vroyer/elassandra,markharwood/elasticsearch,obourgain/elasticsearch,LeoYao/elasticsearch,MisterAndersen/elasticsearch,martinstuga/elasticsearch,awislowski/elasticsearch,glefloch/elasticsearch,henakamaMSFT/elasticsearch,wbowling/elasticsearch,nomoa/elasticsearch,wenpos/elasticsearch,jprante/elasticsearch,cwurm/elasticsearch,gfyoung/elasticsearch,scottsom/elasticsearch,andrejserafim/elasticsearch,awislowski/elasticsearch,ggchangan/elasticsearch-mapper-attachments,F0lha/elasticsearch,jchampion/elasticsearch,liweinan0423/elasticsearch,Collaborne/elasticsearch-mapper-attachments,wenpos/elasticsearch,kalimatas/elasticsearch,a2lin/elasticsearch,wuranbo/elasticsearch,artnowo/elasticsearch,umeshdangat/elasticsearch,yanjunh/elasticsearch,elasticdog/elasticsearch,fernandozhu/elasticsearch,C-Bish/elasticsearch,jchampion/elasticsearch,scottsom/elasticsearch,kalimatas/elasticsearch,mapr/elasticsearch,AndreKR/elasticsearch,coding0011/elasticsearch,scorpionvicky/elasticsearch,mmaracic/elasticsearch,jimczi/elasticsearch,GlenRSmith/elasticsearch,ricardocerq/elasticsearch,C-Bish/elasticsearch,JSCooke/elasticsearch,wangtuo/elasticsearch,henakamaMSFT/elasticsearch,nazarewk/elasticsearch,i-am-Nathan/elasticsearch,avikurapati/elasticsearch,nezirus/elasticsearch,alexshadow007/elasticsearch,gfyoung/elasticsearch,F0lha/elasticsearch,scottsom/elasticsearch,tebriel/elasticsearch,wbowling/elasticsearch,rmuir/elasticsearch,polyfractal/elasticsearch,GlenRSmith/elasticsearch,qwerty4030/elasticsearch,markwalkom/elasticsearch,mortonsykes/elasticsearch,ggchangan/elasticsearch-mapper-attachments,IanvsPoplicola/elasticsearch,qwerty4030/elasticsearch,ESamir/elasticsearch,shreejay/elasticsearch,scorpionvicky/elasticsearch,liweinan0423/elasticsearch,sreeramjayan/elasticsearch,palecur/elasticsearch,HonzaKral/elasticsearch,kaneshin/elasticsearch,dpursehouse/elasticsearch,glefloch/elasticsearch,rmuir/elasticsearch-mapper-attachments,AndreKR/elasticsearch,sreeramjayan/elasticsearch,sneivandt/elasticsearch,Stacey-Gammon/elasticsearch,sreeramjayan/elasticsearch,avikurapati/elasticsearch,jbertouch/elasticsearch,PhaedrusTheGreek/elasticsearch,LeoYao/elasticsearch,mapr/elasticsearch,i-am-Nathan/elasticsearch,maddin2016/elasticsearch,brandonkearby/elasticsearch,artnowo/elasticsearch,Helen-Zhao/elasticsearch,GlenRSmith/elasticsearch,mortonsykes/elasticsearch,jprante/elasticsearch,bornemix/elasticsearch-mapper-attachments,cwurm/elasticsearch,jpountz/elasticsearch,girirajsharma/elasticsearch,snikch/elasticsearch,trangvh/elasticsearch,geidies/elasticsearch,clintongormley/elasticsearch,maddin2016/elasticsearch,sreeramjayan/elasticsearch,clintongormley/elasticsearch,palecur/elasticsearch,mikemccand/elasticsearch,scorpionvicky/elasticsearch,qwerty4030/elasticsearch,nknize/elasticsearch,rmuir/elasticsearch-mapper-attachments,ThiagoGarciaAlves/elasticsearch,cwurm/elasticsearch,palecur/elasticsearch,robin13/elasticsearch,jimczi/elasticsearch,bawse/elasticsearch,rlugojr/elasticsearch,wbowling/elasticsearch,PhaedrusTheGreek/elasticsearch,obourgain/elasticsearch,brandonkearby/elasticsearch,jchampion/elasticsearch,nazarewk/elasticsearch,davidvgalbraith/elasticsearch,markwalkom/elasticsearch,andrejserafim/elasticsearch,mmaracic/elasticsearch,elastic/elasticsearch-mapper-attachments,kalimatas/elasticsearch,LewayneNaidoo/elasticsearch,kalimatas/elasticsearch,winstonewert/elasticsearch,wbowling/elasticsearch,fforbeck/elasticsearch,MisterAndersen/elasticsearch,gmarz/elasticsearch,ZTE-PaaS/elasticsearch,mjason3/elasticsearch,s1monw/elasticsearch,yynil/elasticsearch,strapdata/elassandra,dpursehouse/elasticsearch,strapdata/elassandra,fred84/elasticsearch,davidvgalbraith/elasticsearch,masaruh/elasticsearch,martinstuga/elasticsearch,robin13/elasticsearch,episerver/elasticsearch,zkidkid/elasticsearch,polyfractal/elasticsearch,diendt/elasticsearch,girirajsharma/elasticsearch,geidies/elasticsearch,vroyer/elasticassandra,a2lin/elasticsearch,lks21c/elasticsearch,kaneshin/elasticsearch,rlugojr/elasticsearch,polyfractal/elasticsearch,uschindler/elasticsearch,F0lha/elasticsearch,uschindler/elasticsearch,alexshadow007/elasticsearch,camilojd/elasticsearch,rlugojr/elasticsearch,snikch/elasticsearch,rajanm/elasticsearch,fernandozhu/elasticsearch,strapdata/elassandra5-rc,bawse/elasticsearch,maddin2016/elasticsearch,elasticdog/elasticsearch,markharwood/elasticsearch,elastic/elasticsearch-mapper-attachments,JackyMai/elasticsearch,JSCooke/elasticsearch,njlawton/elasticsearch,F0lha/elasticsearch,shreejay/elasticsearch,Helen-Zhao/elasticsearch,AndreKR/elasticsearch,avikurapati/elasticsearch,MaineC/elasticsearch,geidies/elasticsearch,fforbeck/elasticsearch,nilabhsagar/elasticsearch,cwurm/elasticsearch,spiegela/elasticsearch,njlawton/elasticsearch,mohit/elasticsearch,ThiagoGarciaAlves/elasticsearch,dongjoon-hyun/elasticsearch,clintongormley/elasticsearch,camilojd/elasticsearch,mjason3/elasticsearch,mjason3/elasticsearch,C-Bish/elasticsearch,a2lin/elasticsearch,obourgain/elasticsearch,njlawton/elasticsearch,dpursehouse/elasticsearch,artnowo/elasticsearch,LeoYao/elasticsearch,rajanm/elasticsearch,jimczi/elasticsearch,HonzaKral/elasticsearch,scottsom/elasticsearch,zkidkid/elasticsearch,nomoa/elasticsearch,bjorn-ali-goransson/elasticsearch-mapper-attachments,StefanGor/elasticsearch,girirajsharma/elasticsearch,rajanm/elasticsearch,LewayneNaidoo/elasticsearch,naveenhooda2000/elasticsearch,wbowling/elasticsearch,markwalkom/elasticsearch,ThiagoGarciaAlves/elasticsearch,robin13/elasticsearch,jchampion/elasticsearch,IanvsPoplicola/elasticsearch,yynil/elasticsearch,jpountz/elasticsearch,bjorn-ali-goransson/elasticsearch-mapper-attachments,nknize/elasticsearch,brandonkearby/elasticsearch,elasticdog/elasticsearch,bjorn-ali-goransson/elasticsearch-mapper-attachments,fforbeck/elasticsearch,LeoYao/elasticsearch,mikemccand/elasticsearch,gingerwizard/elasticsearch,nomoa/elasticsearch,strapdata/elassandra5-rc,strapdata/elassandra5-rc,Helen-Zhao/elasticsearch,fforbeck/elasticsearch,alexshadow007/elasticsearch,liweinan0423/elasticsearch,scorpionvicky/elasticsearch,girirajsharma/elasticsearch,markharwood/elasticsearch,scottsom/elasticsearch,clintongormley/elasticsearch,JervyShi/elasticsearch,rmuir/elasticsearch,lks21c/elasticsearch,ESamir/elasticsearch,s1monw/elasticsearch,yynil/elasticsearch,mohit/elasticsearch,dadoonet/elasticsearch-mapper-attachments,snikch/elasticsearch,yanjunh/elasticsearch,zkidkid/elasticsearch,pozhidaevak/elasticsearch,martinstuga/elasticsearch,zkidkid/elasticsearch,nezirus/elasticsearch,jprante/elasticsearch,JSCooke/elasticsearch,elastic/elasticsearch-mapper-attachments,geidies/elasticsearch,mohit/elasticsearch,pozhidaevak/elasticsearch,nilabhsagar/elasticsearch,StefanGor/elasticsearch,F0lha/elasticsearch,bawse/elasticsearch,lks21c/elasticsearch,nazarewk/elasticsearch,polyfractal/elasticsearch,JackyMai/elasticsearch,nilabhsagar/elasticsearch,scorpionvicky/elasticsearch,HonzaKral/elasticsearch,andrejserafim/elasticsearch,a2lin/elasticsearch,mortonsykes/elasticsearch,episerver/elasticsearch,mmaracic/elasticsearch,zkidkid/elasticsearch,trangvh/elasticsearch,Helen-Zhao/elasticsearch,sneivandt/elasticsearch,yynil/elasticsearch,Helen-Zhao/elasticsearch,robin13/elasticsearch,fernandozhu/elasticsearch,ivansun1010/elasticsearch,PhaedrusTheGreek/elasticsearch,gingerwizard/elasticsearch,pozhidaevak/elasticsearch,yanjunh/elasticsearch,lks21c/elasticsearch,diendt/elasticsearch,clintongormley/elasticsearch,wangtuo/elasticsearch,myelin/elasticsearch,yanjunh/elasticsearch,dpursehouse/elasticsearch,obourgain/elasticsearch,AndreKR/elasticsearch,naveenhooda2000/elasticsearch,HonzaKral/elasticsearch,jpountz/elasticsearch,wbowling/elasticsearch,geidies/elasticsearch,tebriel/elasticsearch,fforbeck/elasticsearch,fred84/elasticsearch,JervyShi/elasticsearch,snikch/elasticsearch,ThiagoGarciaAlves/elasticsearch,pozhidaevak/elasticsearch,diendt/elasticsearch,snikch/elasticsearch,rhoml/elasticsearch,xuzha/elasticsearch,davidvgalbraith/elasticsearch,bornemix/elasticsearch-mapper-attachments,s1monw/elasticsearch,henakamaMSFT/elasticsearch,StefanGor/elasticsearch,kaneshin/elasticsearch,rhoml/elasticsearch,diendt/elasticsearch,kaneshin/elasticsearch,mmaracic/elasticsearch,sneivandt/elasticsearch,GlenRSmith/elasticsearch,trangvh/elasticsearch,xuzha/elasticsearch,camilojd/elasticsearch,C-Bish/elasticsearch,myelin/elasticsearch,MisterAndersen/elasticsearch,nomoa/elasticsearch,artnowo/elasticsearch,maddin2016/elasticsearch,rhoml/elasticsearch,MisterAndersen/elasticsearch,nazarewk/elasticsearch,wuranbo/elasticsearch,snikch/elasticsearch,rlugojr/elasticsearch,Stacey-Gammon/elasticsearch,gmarz/elasticsearch,lks21c/elasticsearch,LeoYao/elasticsearch,Shepard1212/elasticsearch,LewayneNaidoo/elasticsearch,JackyMai/elasticsearch,liweinan0423/elasticsearch,uschindler/elasticsearch,fernandozhu/elasticsearch,LeoYao/elasticsearch,PhaedrusTheGreek/elasticsearch,mapr/elasticsearch,strapdata/elassandra5-rc,awislowski/elasticsearch,trangvh/elasticsearch,camilojd/elasticsearch,andrejserafim/elasticsearch,umeshdangat/elasticsearch,rmuir/elasticsearch,JervyShi/elasticsearch,sneivandt/elasticsearch,xuzha/elasticsearch,Shepard1212/elasticsearch,i-am-Nathan/elasticsearch,C-Bish/elasticsearch,diendt/elasticsearch,JSCooke/elasticsearch,MaineC/elasticsearch,nknize/elasticsearch,martinstuga/elasticsearch,fernandozhu/elasticsearch,wangtuo/elasticsearch,bornemix/elasticsearch-mapper-attachments,artnowo/elasticsearch,awislowski/elasticsearch,winstonewert/elasticsearch,rajanm/elasticsearch,jprante/elasticsearch,mjason3/elasticsearch,StefanGor/elasticsearch,ricardocerq/elasticsearch,MaineC/elasticsearch,myelin/elasticsearch,girirajsharma/elasticsearch,brandonkearby/elasticsearch,jpountz/elasticsearch,ZTE-PaaS/elasticsearch,elasticdog/elasticsearch