Refactor/Cosmetics on autocomplete caching implementation.

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@8906 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Fixed datalist emptymessage.

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@8907 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Refactor on dialog focus feature

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@8910 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c