Clarify roadmap
Clarify roadmap

Remove lxc and aufs dependencies and priority of running on older kernels.

Docker-DCO-1.1-Signed-off-by: Glyn Normington <gnormington@gopivotal.com> (github: glyn)

jhowardmsft/runc,subuser-security/runc,maxamillion/runc,opencontainers/runc,opencontainers/runc,wking/runc,shenxiaochen/libcontainer,ekuric/runc,gwoo/runc,haijunTan/runc,wcwxyz/runc,maxamillion/runc,rhatdan/libcontainer,ekuric/runc,unclejack/libcontainer,kolyshkin/runc,balajibr/runc,ZJU-SEL/runc,talwai/runc,ZJU-SEL/runc,boucher/libcontainer,keloyang/libcontainer,wangkirin/runc,mrunalp/runc,rajasec/runc,boucher/runc,docker/runc,jhowardmsft/runc,wangkirin/runc,shakamunyi/libcontainer,meihuabo/runc,markllama/runc,marcosnils/runc,carlye566/runc,ZJU-SEL/runc,carlye566/runc,crosbymichael/libcontainer,avagin/runc,hxfeng/runc,WeiZhang555/runc,thaJeztah/libcontainer,dqminh/runc,ycaihua/runc,whuwxl/libcontainer,talwai/runc,shishir-a412ed/runc,han-wang/runc,sallyom/runc,adrianreber/runc,runcom/runc,WeiZhang555/runc,justincormack/runc,LTD-Beget/libcontainer,gitido/runc,intfrr/runc,SaiedKazemi/libcontainer-criu,han-wang/runc,ZJU-SEL/libcontainer,han-wang/runc,unclejack/libcontainer,haijunTan/runc,rhatdan/runc,vbatts/runc,boucher/runc,justincormack/runc,adrianreber/runc,HardikDR/runc,docker/libcontainer,intfrr/runc,thaJeztah/libcontainer,aidanhs/runc,kolyshkin/runc,cloudfoundry-incubator/runc,adrianreber/runc,mYmNeo/runc,justincormack/runc,markllama/runc,clnperez/runc,thaJeztah/libcontainer,ycaihua/libcontainer,hxfeng/runc,icecrime/libcontainer,crosbymichael/libcontainer,InformatiQ/runc,rootfs/runc,unclejack/libcontainer,dieface/runc,navidshaikh/runc,meihuabo/runc,w4ngyi/libcontainer,liuwharton/runc,gitido/runc,avagin/libcontainer,laijs/runc,dqminh/libcontainer,mYmNeo/runc,stefanberger/runc,ycaihua/runc,jhjeong-kr/runc,runcom/libcontainer,shishir-a412ed/runc,HuKeping/runc,whuwxl/libcontainer,rhatdan/runc,talwai/runc,shishir-a412ed/runc,rhatdan/libcontainer,ddnbgroup/runc,calavera/runc,aidanhs/runc,maxamillion/runc,runcom/runc,ddnbgroup/runc,jhjeong-kr/runc,mheon/runc,willmtemple/runc,sunyuan3/runc,LK4D4/runc,zhangyancoder/libcontainer,wking/runc,rsampaio/runc,mikebrow/runc,cxxly/runc,dqminh/libcontainer,YujiOshima/runc,keloyang/runc,sallyom/runc,dqminh/runc,sunyuan3/runc,kolyshkin/runc,zenlinTechnofreak/runc,abduld/runc,YujiOshima/runc,zenlinTechnofreak/runc,docker/libcontainer,inatatsu/runc,cyphar/runc,mapk0y/runc,axsh/runc,xiaochenshen/runc,hxfeng/runc,LK4D4/runc,HardikDR/runc,rajasec/runc,balajibr/runc,xiaochenshen/runc,ZJU-SEL/libcontainer,inatatsu/runc,inatatsu/runc,albertoleal/runc,milosgajdos83/libcontainer-milosgajdos83,axsh/runc,dieface/runc,LK4D4/runc,BrickXu/libcontainer,jwuwork/runc,mheon/runc,HuKeping/runc,dqminh/libcontainer,keloyang/runc,calavera/runc,lizf-os/runc,stefanberger/runc,ChengTiesheng/runc,ZJU-SEL/libcontainer,avagin/runc,hqhq/runc,sunyuan3/runc,rsampaio/runc,lizf-os/runc,boucher/runc,whosthatknocking/runc,jwuwork/runc,jhowardmsft/runc,mheon/libcontainer,Microsoft/libcontainer,clnperez/runc,zhangyancoder/libcontainer,mapk0y/runc,opencontainers/runc,ycaihua/libcontainer,mheon/libcontainer,cyphar/runc,mrunalp/libcontainer,avagin/runc,mrunalp/libcontainer,kimh/runc,wcwxyz/runc,Mashimiao/libcontainer,whosthatknocking/runc,wangkirin/runc,mikebrow/runc,HardikDR/runc,rhatdan/runc,whosthatknocking/runc,kolyshkin/runc,rhatdan/libcontainer,ekuric/runc,nkwilson/runc,nkwilson/runc,shenxiaochen/libcontainer,wking/runc,coolljt0725/runc,axsh/runc,chenchun/runc,laijs/runc,jhjeong-kr/runc,ycaihua/libcontainer,marcosnils/runc,YujiOshima/runc,navidshaikh/runc,icecrime/libcontainer,chenchun/runc,abduld/runc,tangkun75/libcontainer,hqhq/libcontainer,w4ngyi/libcontainer,estesp/runc,milosgajdos83/libcontainer-milosgajdos83,boucher/libcontainer,LTD-Beget/libcontainer,tangkun75/libcontainer,whuwxl/libcontainer,SaiedKazemi/libcontainer-criu,markllama/runc,willmtemple/runc,Microsoft/libcontainer,aidanhs/runc,mikebrow/runc,rootfs/runc,sallyom/runc,ChengTiesheng/runc,docker/libcontainer,mrunalp/runc,calavera/runc,ChengTiesheng/runc,laijs/runc,SaiedKazemi/libcontainer-criu,mapk0y/runc,opencontainers/runc,rajasec/runc,nkwilson/runc,crosbymichael/runc,coolljt0725/runc,cloudfoundry-incubator/runc,coolljt0725/runc,rsampaio/runc,hqhq/runc,fabiokung/runc,albertoleal/runc,avagin/libcontainer,ycaihua/runc,liuwharton/runc,docker/runc,shakamunyi/libcontainer,abduld/runc,willmtemple/runc,rhatdan/runc,keloyang/libcontainer,cloudfoundry-incubator/runc,shenxiaochen/libcontainer,avagin/libcontainer,jwuwork/runc,zenlinTechnofreak/runc,docker/runc,HuKeping/runc,InformatiQ/runc,mrunalp/libcontainer,intfrr/runc,Microsoft/libcontainer,BrickXu/libcontainer,booyaa/runc,fabiokung/runc,stefanberger/runc,crosbymichael/runc,navidshaikh/runc,subuser-security/runc,vbatts/runc,mheon/runc,ddnbgroup/runc,shakamunyi/libcontainer,estesp/libcontainer,keloyang/libcontainer,dieface/runc,mYmNeo/runc,estesp/runc,tangkun75/libcontainer,fabiokung/runc,InformatiQ/runc,chenchun/runc,lizf-os/runc,runcom/runc,cyphar/runc,BrickXu/libcontainer,runcom/libcontainer,runcom/libcontainer,hqhq/libcontainer,carlye566/runc,mrunalp/runc,LTD-Beget/libcontainer,crosbymichael/runc,WeiZhang555/runc,gitido/runc,hqhq/runc,keloyang/runc,booyaa/runc,keloyang/libcontainer,cxxly/runc,crosbymichael/libcontainer,clnperez/runc,meihuabo/runc,w4ngyi/libcontainer,liuwharton/runc,dqminh/runc,kimh/runc,cxxly/runc,zhangyancoder/libcontainer,hqhq/libcontainer,icecrime/libcontainer,albertoleal/runc,haijunTan/runc,Mashimiao/libcontainer,wcwxyz/runc,estesp/libcontainer,kimh/runc,xiaochenshen/runc,estesp/runc,booyaa/runc,balajibr/runc,subuser-security/runc,boucher/libcontainer,dqminh/runc,marcosnils/runc,rootfs/runc,estesp/libcontainer,Mashimiao/libcontainer,vbatts/runc,mheon/libcontainer