Add route for activity details and link to comments.

Removed unnecessary include.
Fix correct creation of membership associations on project copy
Fix cascade deletion of membership associations on project destroy
Merge pull request #1779 from netfighter/feature/14377_align_copy_project_with_dtag_privacy_guidelines
removes no longer required before filter

The only action requiring the call to assign_planning_elements is the
index action. This action receives it's work packages by calling the
assign_planning_elements method from other methods.
Test subproject copy
Fix subproject copy
Bump version to 3.0.12
Edit button now redirects to edit wp instead of show.
wp update looks for optional back url after update.
back_url actually optional. fixes spec.
Bump version to 3.0.13
Half solution to the activity links url bug.
Make relation delete control accessible
Remove therubyracer dependency

Node.js is now a requirement for asset pre-compilation.

[ci skip]

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Remove filter clear button from work packages view

User Story # 10350

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Remove now obselete filter-clear directive

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Remove relation from list instead of reloading the WP
Update the focus after relation addition/removal
Do not focus anything when loading the relation directive