Removing useless methods from user model.
Removing useless methods from Configuration and ReadingGroup ownership model
Merge pull request #160 from beatrizrezener/issue40

Removing useless methods. Closes issue #40.
Closes issue #159. Fixing wrong redirect button back on new protjects page
Merge pull request #161 from jgbs/issue159

Closes issue #159. Fixing wrong redirect button back on new protjects pa...