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
new version; update changelog
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.
Merge branch 'feature/server-side-filters' of github.com:opf/openproject into feature/server-side-filters
no none elements no more.

for types.
Merge pull request #458 from opf/feature/work_package_renamings

Replace deprecated generate_for_project with Factory Girl, remove :issue...
-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.