Fix #447 Minisites deleted from user dashboard are not correctly removed.
Fix #335 downloading with powerFS from left pane
Fix #432 disable powerfs plugin when in share link download context
Configure user dashboard logo
Fix old "ajaxplorer" mention
Fix download_all action overriding the download keyboard shortcut
Fix Chrome 32 drag'n'drop bug - Close #426
Dist: make sure to clear i18n cache after rpm/deb update. Update AJXP_PACKAGING variable for deb packages to avoid in-app upgrade.