Authentication creds passed on the query string is very, very bad
Removing the test for the check of authentication via query string
Allowing GET methods on /contributor to be accessed w/o Authentication

We have /contributor/search which is available without authentication, I
don't see why we don't allow these other two without authentication
Adding TODOs about exceptions
Merge branch 'authentication_changes' of github.com:LightGuard/searchisko into LightGuard-authentication_changes
Do not allow non-authorized users to get all contributor data this way. There will be better API for this as part of #5.
- also do some minor cleanup.