Use full date and time in Volunteer Slot dropdown.
Volunteer sign-up form now caches project object instead of project_id.
Set title of Volunteer Sign-up form based on title of project's related entity.
Custom profile now lists CiviVolunteer as its module.
Update form to look up and use custom profile.
Merge pull request #60 from colemanw/master

Work on adding contacts CRM-12859
Merge pull request #61 from fjg-conflux/signup_form

Volunteer signup form: use full date and time in slot dropdown, use entity (event) title, use custom profile.
Wire up drag-n-drop CRM-12859