Merge pull request #4 from kknavs/master

Added error pages 404,500
Started work on user authentication and registration.
Merge pull request #6 from kknavs/master

Small update of basic view.
Changes to forms and urls
Accepted changes
Merge pull request #5 from JonNatanael/master

Authentication and registration #1
Manually merged some files.
Manually merged some files. #2
Finished with user registration, login and logout.
Merge pull request #7 from JonNatanael/master

Authentication and registration finished for the moment
Reworked some things regarding logout and enabled admin pages.
Merge pull request #8 from JonNatanael/master

Some changes and enabled admin site.
Merge pull request #2 from ipri2013/master

2
small update of admin site
Merge pull request #9 from domc/master

admin update