Added next-release folder for on-going work for next release
Added next-release folder for on-going work for next release

chenmusun/easyloggingpp,dreal-deps/easyloggingpp,spthaolt/easyloggingpp,simonhang/easyloggingpp,spqr33/easyloggingpp,dreal-deps/easyloggingpp,chenmusun/easyloggingpp,hellowshinobu/easyloggingpp,spqr33/easyloggingpp,utiasASRL/easyloggingpp,blankme/easyloggingpp,simonhang/easyloggingpp,simonhang/easyloggingpp,arvidsson/easyloggingpp,hellowshinobu/easyloggingpp,chenmusun/easyloggingpp,lisong521/easyloggingpp,utiasASRL/easyloggingpp,arvidsson/easyloggingpp,dreal-deps/easyloggingpp,utiasASRL/easyloggingpp,spthaolt/easyloggingpp,lisong521/easyloggingpp,lisong521/easyloggingpp,blankme/easyloggingpp,hellowshinobu/easyloggingpp,blankme/easyloggingpp,spqr33/easyloggingpp,spthaolt/easyloggingpp,arvidsson/easyloggingpp