Refactores work package's routing specs
Moves context menu to work package
Replace deprecated generate_for_project with Factory Girl, remove :issue from work package factory.
Moves tests to specs
Fixes specs
Set order for postgres
Add responsible Server Side Filter.
Introduces status filters in timeline UI.
paginate statuses in api/v2.
Removes client-side filter for responsibles.
Improves cuke to run faster.

The new timeline will render much faster, additionally, the scenario
name was fixed from the previous copy/paste duplucation.
status display. server side filter.
no none elements no more.

for types.
-1 filters for null values.
Adds cukes for responsible filter.
Modals can be easily used in the whole app

- always include modal javascript
- adapted timelines javascript
Changelog.
refactoring. pes w/ no responsible test added.
Changelog.
Added abstract model base class for all journal types