Unsubscribe from app. ref 14873
Minor fix
Spec comment fix
Merge branch 'errbit' into feature/upstream_merge
Merge upstream
Remove return(false) from before_filter "require_watcher_edit_priviledges"
Merge branch 'errbit' into feature/upstream_merge
Upgrade to Mongoid 3.1.4 version
remove ruby 1.8 support

Mongoid 3.x is ruby 1.9+
remove ruby 1.9.2 from travis
fixing mongo.rb initializer to use mongoid 3
fix mongoid migrations
Merge pull request #515 from arthurnn/mongoid_upgrade

Conflicts:
	app/models/notice.rb
To legacy purpose we need App _id to be string

revert from [039744a1bb25e6b9ed1bd287554f039ebdc2df60]
Add test about the _id field of App to avoid forget it
The search need search on where field too

This search was revert in commit
[039744a1bb25e6b9ed1bd287554f039ebdc2df60]
Define some Mongoid option mandatory by define if there are ENV
configuration or not

Revert in commit [f021f13444f727888986ea79fad36b77ca0f6ae7]
Avoid same error if other line than first change

Only the first line of backtrace was use to mark error like same. Avoid
this behavior because some language ( like python ) change only last
line of backtrace
Merge branch 'master' into mongoid-3

Conflicts:
	spec/models/problem_spec.rb
Delete the .rspec file not useful to be versioned