Update all the gems to stuff that works with rails 4, including our own forks
The assets group is gone
Added the `protected_attributes` gem for transition
Scopes now need to be callable ... Enter: Lambdas
Moar fixes
Auch bei has_many müssen nun scopes rein
Looks like someone didn't check in the schema file
Switchting to the stable Github branch

This removes some of the warnings
MySQL Config: user is now username
Event and Single Event Models: attr_accessible

This fixes the model failures
`secret_token` is now `secret_key_base`
To determine if the single events are empty, we need an array

Fixes the next failure
Extracted Scope (and killed some more Strings) :revolver:

I hate Strings.
Fixed two more iCal Controller Spec Failures
Fixed all spec failures \o/
lol, u don't exist anymore. What are you doin' here?
More unrealized relations.
Rails4 Branch is gone. Release is not done yet :panda_face:
Rails 4 Stable is Not Stable

Migrations are broken in Rails 4 Stable... because someone is
using it as his master branch.

Everything is broken.
Travis Settings adjusted

* 1.9.2 is no longer supported by Rails 4
* 1.9.3 fails for some reason, I added it to the allowed failures
* rbx-19mode exchanged for head