dialogs: add smoother svg ajax indicators, re #4404

git-svn-id: svn://develop.studip.de/studip/trunk@30475 c5b85792-5220-0410-ad23-ed5b6b8ad999
dialogs: update styles, re #4404

git-svn-id: svn://develop.studip.de/studip/trunk@30476 c5b85792-5220-0410-ad23-ed5b6b8ad999
dialogs: add new js libs for lightbox and overlay behaviour, re #4404

git-svn-id: svn://develop.studip.de/studip/trunk@30477 c5b85792-5220-0410-ad23-ed5b6b8ad999
dialogs: remove old lightbox behaviour and activate new libs, re #4404

git-svn-id: svn://develop.studip.de/studip/trunk@30478 c5b85792-5220-0410-ad23-ed5b6b8ad999
dialogs: update old code to new conditions, re #4404

git-svn-id: svn://develop.studip.de/studip/trunk@30479 c5b85792-5220-0410-ad23-ed5b6b8ad999