user credentials can now be shown, and can be removed, still to add them dynamically
Merge branch 'master' into user-credentials
now the adding of the user credential inline is working
why is rails_admin_histories showing here?
model specs and validations
now agents repond to credential method call, and specs
cleanup!
Merge branch 'master' into user-credentials
refactor to remove rescue
Merge branch 'user-credentials' of https://github.com/umarsheikh/huginn into umarsheikh-user-credentials

Conflicts:
	db/schema.rb
move user credentials to a primary route, update twitter agents and background job
Merge pull request #156 from cantino/user_credentials

Add UserCredentials and use them in the twitter Agents