merge svn:22505 into 2.5 branch
bug:2896
thx to Kaare
apply render_element_description inside get_thumbnail_title()

git-svn-id: http://piwigo.org/svn/branches/2.5@22506 68402e56-0260-453c-a942-63ccdbb3a9ee
merge svn:22516 from trunk to branch 2.5
bug:2890
 for "Manage Permissions" and "Manage the members", don't display the button "apply action" button and style as a button the links

git-svn-id: http://piwigo.org/svn/branches/2.5@22517 68402e56-0260-453c-a942-63ccdbb3a9ee
merge svn:22518 from trunk to 2.5
bug:2896
debugg the empty()
adding htmlspecialchars(strip_tags()) before the truncature in order to avoid blanks, if the description has html/ExtendedDescription tags

git-svn-id: http://piwigo.org/svn/branches/2.5@22519 68402e56-0260-453c-a942-63ccdbb3a9ee