Prepare for 2.x integration

git-svn-id: https://primefaces.googlecode.com/svn/primefaces/trunk@11882 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
#7488

git-svn-id: https://primefaces.googlecode.com/svn/primefaces/trunk@11883 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Merge branch 'master' (early part) into 5.0.x
Merge branch 'master' into 5.0.x
Tagged 5.0.10-UR
Next maintenance iteration for 5.0.x