corrected an old torproject.us to torproject.org
fix against https://github.com/globaleaks/GlobaLeaks/issues/737
fix against issue https://github.com/globaleaks/GlobaLeaks/issues/726
fix against: https://github.com/globaleaks/GlobaLeaks/issues/594
applyed more similar colors to the old gradient ones.
added green success bubble for receivers updates
Merge branch 'devel'
update Translations
Merge branch 'devel'
bump to version 2.50.8