Merge pull request #660 from takeit/v4.2.2-current

V4.2.2 current fixes for release
Merge pull request #661 from takeit/v4.2.2-current

force user to give writable access for themes directory
Merge pull request #665 from takeit/v4.2.2-current

[CS-5312] - Reinstallation of Newscoop fails with bogus upgrade message & [CS-5334] - Upgrade SQL needed for new localizations
CS-5344 - Blank page after restore password on back-end
Merge branch 'v4.2' of github.com:sourcefabric/Newscoop into v4.2.2-current