Resolved "Trying to get property of non-object" notices.
Consolidated menu XML.
Fixed undefined index notice.
Fixed regression introduced while implementing VOL-54 in which flexible needs were not automatically created for new projects. Implemented magic get method for flexible_need_id property of CRM_Volunteer_BAO_Project.
VOL-51: Added filter and search icons, and corresponding show/hide logic, to assign view.
VOL-51: Created custom search boilerplate.
VOL-51: Added mechanism to look up the volunteer custom search.
VOL-51: Wired up search button