Merge pull request #182 from camilin87/kmoya-dev-branch

Merging up-to-date my branch to master
Merge pull request #183 from camilin87/kmoya-dev-branch

implemented method on new_project_helper
Accepted notifications for user with a project already
Resolving conflicts
Notifications issues fixed
Merge pull request #185 from camilin87/master

merge last changes of master into my branch