Added block in project search form
Changed the label text for tasks from realized to completed
Only search tasks in projects that are publicly viewable
Added the number of people required to the tasks
Set deadline for project tasks to +1Y maximum
Found another place to change realized -> completed

Extended API tests + fixed task search filter malfunctionining
Fixed error on the task serializer validator to allow missing people_needed field
Removed custom validation - not required
merge
Merge pull request #195 from sergei-maertens/integration

Added block in project search form