Stakeholder and BoardMember fields were joined into a Role field
Birthday was added to a person profile
Merge branch 'master' into refactoring-person-and-participant

Conflicts:
	app/controllers/Participants.scala
	app/controllers/People.scala
	app/models/Person.scala
	app/models/database/People.scala
	app/views/fieldConstructor.scala.html
	app/views/person/details.scala.html
	app/views/person/form.scala.html
	conf/evolutions/default/58.sql
1. Birthday was added to both Participant and Person
2. Comment/Organisation were added to a new participant
Merge pull request #114 from HappyMelly/refactoring-person-and-participant

Refactoring person and participant