Bakcward compatibility work on filterBy expressions

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10216 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
More work on backward compatibility

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10217 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Refactor

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10218 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Bug Fix

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10219 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Bug Fix

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10220 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
#6304

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10221 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
refactored SearchExpressions to use options, prepared for #5238

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10222 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Bug fix

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10223 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c