FreenetIS

Refs #1076: member expiration date calculation fix. The calc functionality was separate from Members controller to a new Expiration calc service. The new service comes with unit tests which tests the #1076. Additionally this patch comes with some fixes and improvements in already existing unit and integration tests.

Fix merge issue that removed all staff from developer branch :-).

Undo my stupid mistake (I have pushed issue-957 to master instead of develop). Do I have copied files from GitHub master and push them back..

Merge from SVN branch 1.2.