RF-13301 tabPanel test use page-fragment

I created pull request based on https://issues.jboss.org/browse/RF-13301. I decided to push it to new branch rf-13301_2 and there is only one commit to merge. Now commit reflect changed in page-fragments which has been done in https://issues.jboss.org/browse/RF-13831.

The pull request https://github.com/richfaces/richfaces/pull/108 could be reject.