Rework Settings layout : close InfoPanel, dedicated Parameters button, etc.
Catch a problem in bootstrap if messages sent in bootstrap_conf are empty.

git-svn-id: https://ajaxplorer.svn.sourceforge.net/svnroot/ajaxplorer/trunk@3455 3bf36de4-da32-0410-8312-848cfbfe3f7d
Refix small-screeen adaptation for vision theme.
Temporary fix for + button height, to check.

git-svn-id: https://ajaxplorer.svn.sourceforge.net/svnroot/ajaxplorer/trunk@3456 3bf36de4-da32-0410-8312-848cfbfe3f7d