Backward compatibility on umbra theme

git-svn-id: https://ajaxplorer.svn.sourceforge.net/svnroot/ajaxplorer/trunk@3411 3bf36de4-da32-0410-8312-848cfbfe3f7d
Accept special chars in component_config className attribute (className::ajxpPaneId)

git-svn-id: https://ajaxplorer.svn.sourceforge.net/svnroot/ajaxplorer/trunk@3412 3bf36de4-da32-0410-8312-848cfbfe3f7d
Pass a percent for the splitter resize

git-svn-id: https://ajaxplorer.svn.sourceforge.net/svnroot/ajaxplorer/trunk@3413 3bf36de4-da32-0410-8312-848cfbfe3f7d