Add sortField attribute to datatable.

git-svn-id: https://primefaces.googlecode.com/svn/primefaces/trunk@11788 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Fixed filtering bug, use correct expression

git-svn-id: https://primefaces.googlecode.com/svn/primefaces/trunk@11789 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
bugfix

git-svn-id: https://primefaces.googlecode.com/svn/primefaces/trunk@11790 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
bugfix

git-svn-id: https://primefaces.googlecode.com/svn/primefaces/trunk@11791 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Update Atmosphere implementation to 2.2, improve code robusness

git-svn-id: https://primefaces.googlecode.com/svn/primefaces/trunk@11792 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
bugfix

git-svn-id: https://primefaces.googlecode.com/svn/primefaces/trunk@11793 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Merge branch 'master' (early part) into 5.0.x
Merge branch 'master' (early part) into 5.0.x
Merge branch 'master' into 5.0.x
Tagged 5.0.7-UR
Next maintenance iteration for 5.0.x