add attribution and update function
add attribution and update function

mstahv/Leaflet,cartant/Leaflet,perliedman/Leaflet,wancharle/Leaflet,grahamthompson/Leaflet,jmutua2015/Leaflet,codeator/Leaflet,sambernet/Leaflet,tbassett44/Leaflet,msiadak/Leaflet,Jakobud/Leaflet,yohanboniface/Leaflet,2gis/Leaflet,webmechanicx/Leaflet,iOffice/Leaflet,bbecquet/Leaflet,webmechanicx/Leaflet,brunocasanova/frontend-asset-leaflet,taraszerebecki/Leaflet,nathancahill/Leaflet,klaftertief/Leaflet,snkashis/Leaflet,fillerwriter/Leaflet,eriksjaastad/Leaflet,w8r/Leaflet,hyperknot/Leaflet,taraszerebecki/Leaflet,northerneyes/Leaflet,prashen/Leaflet,RyanHickman/Leaflet,pzdz/Leaflet,codeator/Leaflet,elfalem/Leaflet,lee101/Leaflet,mbrukman/Leaflet,brah/Leaflet,thalesfsp/Leaflet,stefanocudini/Leaflet,grahamthompson/Leaflet,gabrielpconceicao/frontend-asset-leaflet,twoubt/Leaflet,thalesfsp/Leaflet,nikhildhamsaniya/Leaflet,wancharle/Leaflet,wancharle/Leaflet,nkovacs/Leaflet,jasonoverland/Leaflet,billybonz1/Leaflet,lizardtechblog/Leaflet,brah/Leaflet,bolshoibooze/Leaflet,tormi/Leaflet,dhootha/Leaflet,tyrasd/Leaflet,olafurr/Leaflet,Andrey-Pavlov/Leaflet,Ossehoht/Leaflet,gabrielpconceicao/frontend-asset-leaflet,msokk/Leaflet,sellonen/Leaflet,Andrey-Pavlov/Leaflet,codeator/Leaflet,nathancahill/Leaflet,starsolaris/Leaflet,jblarsen/Leaflet,iamjonbradley/Leaflet,iamjonbradley/Leaflet,Fil/Leaflet,Neorth/Leaflet,Trufi/Leaflet,akrzyzanowskino/TeamSE,tormi/Leaflet,mbrukman/Leaflet,twoubt/Leaflet,fredericksilva/Leaflet,wpf500/Leaflet,AndBicScadMedia/Leaflet,Jakobud/Leaflet,nycitt/Leaflet,fab1an/Leaflet,cmulders/Leaflet,psicomante/Leaflet,javimolla/Leaflet,sisou/Leaflet,moklick/Leaflet,Neorth/Leaflet,bolshoibooze/Leaflet,CorainChicago/Leaflet,Neorth/Leaflet,tbassett44/Leaflet,Fil/Leaflet,rlugojr/Leaflet,nycitt/Leaflet,waeltken/Leaflet,brah/Leaflet,kumy/Leaflet,devjoseluis/Leaflet,brunocasanova/frontend-asset-leaflet,beni55/Leaflet,fab1an/Leaflet,w8r/Leaflet,CapeSepias/Leaflet,frogcat/Leaflet,frogcat/Leaflet,cmulders/Leaflet,frogcat/Leaflet,davidlukerice/Leaflet,patrickarlt/Leaflet,AP-whitehat/Leaflet,rlugojr/Leaflet,Ossehoht/Leaflet,geoloep/Leaflet,kumy/Leaflet,Ubisense/Leaflet,sisou/Leaflet,alex2wong/Leaflet,Srikanth4/Leaflet,msokk/Leaflet,iZucken/Leaflet,fredericksilva/Leaflet,2gis/Leaflet,grahamthompson/Leaflet,geoloep/Leaflet,elfalem/Leaflet,scaddenp/Leaflet,alex2wong/Leaflet,sambernet/Leaflet,kumy/Leaflet,pakro/Leaflet,akrzyzanowskino/TeamSE,litnerdy/Leaflet,mediasuitenz/Leaflet,fredericksilva/Leaflet,prashen/Leaflet,klaftertief/Leaflet,bolshoibooze/Leaflet,tsantacruz/RotationalMarker,davidlukerice/Leaflet,psicomante/Leaflet,nikhildhamsaniya/Leaflet,elfalem/Leaflet,beni55/Leaflet,AP-whitehat/Leaflet,waeltken/Leaflet,jblarsen/Leaflet,Leaflet/Leaflet,MuellerMatthew/Leaflet,elkingtonmcb/Leaflet,davidlukerice/Leaflet,thalesfsp/Leaflet,sambernet/Leaflet,beni55/Leaflet,msokk/Leaflet,lee101/Leaflet,stefanocudini/Leaflet,Jakobud/Leaflet,mstahv/Leaflet,elkingtonmcb/Leaflet,northerneyes/Leaflet,Ubisense/Leaflet,pakro/Leaflet,MuellerMatthew/Leaflet,Fil/Leaflet,RLRR/Leaflet,tsantacruz/RotationalMarker,starsolaris/Leaflet,davojta/Leaflet,mediasuitenz/Leaflet,RobertoMalatesta/Leaflet,caiiiycuk/Leaflet,Mark-Wood/Leaflet,hyperknot/Leaflet,nathancahill/Leaflet,davojta/Leaflet,Andrey-Pavlov/Leaflet,AP-whitehat/Leaflet,RyanHickman/Leaflet,cartant/Leaflet,devjoseluis/Leaflet,RobertoMalatesta/Leaflet,Leaflet/Leaflet,wrrnwng/Leaflet,dhootha/Leaflet,billybonz1/Leaflet,fab1an/Leaflet,scaddenp/Leaflet,iamjonbradley/Leaflet,huangsong/Leaflet,akrzyzanowskino/TeamSE,andrewmartini/Leaflet,akauppi/Leaflet,andrewmartini/Leaflet,kjell/Leaflet,akauppi/Leaflet,tomnod/Leaflet,javimolla/Leaflet,wpf500/Leaflet,Trufi/Leaflet,RyanHickman/Leaflet,MuellerMatthew/Leaflet,pakro/Leaflet,tsantacruz/RotationalMarker,Srikanth4/Leaflet,RLRR/Leaflet,bbecquet/Leaflet,davojta/Leaflet,billybonz1/Leaflet,mourner/Leaflet,AndBicScadMedia/Leaflet,jmutua2015/Leaflet,scaddenp/Leaflet,iOffice/Leaflet,nycitt/Leaflet,nkovacs/Leaflet,DrillingInfo/Leaflet,twoubt/Leaflet,DrillingInfo/Leaflet,tbassett44/Leaflet,akauppi/Leaflet,lee101/Leaflet,snkashis/Leaflet,danzel/Leaflet,iZucken/Leaflet,jblarsen/Leaflet,geoloep/Leaflet,jasonoverland/Leaflet,gabrielpconceicao/frontend-asset-leaflet,olafurr/Leaflet,tormi/Leaflet,prashen/Leaflet,Ossehoht/Leaflet,patrickarlt/Leaflet,jasonoverland/Leaflet,hyperknot/Leaflet,andrewmartini/Leaflet,Ubisense/Leaflet,eriksjaastad/Leaflet,CorainChicago/Leaflet,yohanboniface/Leaflet,stefanocudini/Leaflet,CapeSepias/Leaflet,juliensoret/Leaflet,wrrnwng/Leaflet,tomnod/Leaflet,caiiiycuk/Leaflet,caiiiycuk/Leaflet,huangsong/Leaflet,Srikanth4/Leaflet,cmulders/Leaflet,nvoron23/Leaflet,nvoron23/Leaflet,CapeSepias/Leaflet,Mark-Wood/Leaflet,RobertoMalatesta/Leaflet,kjell/Leaflet,snkashis/Leaflet,litnerdy/Leaflet,mediasuitenz/Leaflet,nikhildhamsaniya/Leaflet,msiadak/Leaflet,jmutua2015/Leaflet,w8r/Leaflet,waeltken/Leaflet,eriksjaastad/Leaflet,dhootha/Leaflet,starsolaris/Leaflet,CorainChicago/Leaflet,fillerwriter/Leaflet,huangsong/Leaflet,mstahv/Leaflet,Leaflet/Leaflet,2gis/Leaflet,webmechanicx/Leaflet,sellonen/Leaflet,brunocasanova/frontend-asset-leaflet,olafurr/Leaflet,msiadak/Leaflet,iOffice/Leaflet,Trufi/Leaflet,pzdz/Leaflet,rlugojr/Leaflet,elkingtonmcb/Leaflet,juliensoret/Leaflet,sellonen/Leaflet,AndBicScadMedia/Leaflet,cartant/Leaflet,wpf500/Leaflet,psicomante/Leaflet,javimolla/Leaflet,bbecquet/Leaflet,litnerdy/Leaflet,RLRR/Leaflet,mourner/Leaflet,tomnod/Leaflet,alex2wong/Leaflet,devjoseluis/Leaflet,wrrnwng/Leaflet,mbrukman/Leaflet,fillerwriter/Leaflet,mourner/Leaflet,azimux/Leaflet,iZucken/Leaflet,sisou/Leaflet,pzdz/Leaflet,klaftertief/Leaflet,taraszerebecki/Leaflet,yohanboniface/Leaflet