Summary, assignee and planned end date required

… on task group modal.
Corrected validation logic for contact.
Fix TaskGroup validation for end_date and assignee

The logic in this commit should work after a separate bug is fixed. I’m
checking in this code now. Anze and Brad will work to resolve the other
bug. The bug I’m referring to was introduced in commit
8a5f600c65b7b45fd34bf8a7631961a6d5a19638 to resolve a bit of a circular
loop related to autocomplete in search.
Ensure Start Cycle button comes back after ending a cycle
Merge pull request #1489 from reciprocity/feature/fix-start-cycle-button

Ensure Start Cycle button comes back after ending a cycle
Fix minor issue with merge to develop branch related to add/remove member and cycle state for sending Email_Now, remove duplicates in email for member add/remove
Refreshing cycle objects

This commit fixes:

- cycle task entries disappearing on edit
- cycle task group status not propagating
Merge pull request #1495 from reciprocity/feature/workflow-cycle-refresh

Refreshing cycle objects
Reference to start date should be to end date
Merge pull request #1494 from reciprocity/feature/workflow-task-group-fixes

Feature/workflow task group fixes
Merge pull request #1490 from reciprocity/email_notification_wfmember_fix

Fix minor issue with merge to develop branch related to add/remove members
Merge remote-tracking branch 'origin/release/0.9a32' into develop
Bump version to s32.1
Merge pull request #1496 from reciprocity/feature/version-sprint-32.1

Bump version to s32.1
Merge remote-tracking branch 'origin/develop' into release/0.9a32
Bugfix: Make sure get_stubs returns a can.Stub.List
Merge pull request #1499 from reciprocity/feature/workflow-objects-mapping

Bugfix: Make sure get_stubs returns a can.Stub.List
b/16036962 Autocomplete script error
Merge pull request #1500 from reciprocity/feature/autocomplete-script

b/16036962 Autocomplete script error
Merge remote-tracking branch 'origin/develop' into feature/create-task-in-task-group

Conflicts:
	src/ggrc/assets/javascripts/controllers/modals_controller.js