Issue 6700:	selectOneRadio throws NPE when itemLabel is not defined

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10877 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Bugfix

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10878 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Fixed selector

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10879 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c
Removed unnecessary tags when itemLabel is undefined

git-svn-id: http://primefaces.googlecode.com/svn/primefaces/trunk@10880 5a70e874-a5cb-11dd-8af2-493fb0bb9f7c