avoid SortFeature instantation - it's already available

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11111 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
#6854

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11112 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
#6856

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11113 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Set 1 as default columns number when undefined

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11114 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Fixed #6804

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11115 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Cosmetics and Refactor

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11116 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Refactor on filterValue resolution

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11117 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Refactor r11101 

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11118 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
revert r11106, will do it for 5.1.

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11119 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Created LineChartModel.

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@11120 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c