changes projects_volunteers to interests

created migration & routes

Signed-off-by: Laura Montemayor <laumontemayor@gmail.com>
Merge branch 'master' of https://github.com/cemmanuel1/DBCFinalProject into laura

Signed-off-by: Laura Montemayor <laumontemayor@gmail.com>

Conflicts:
	.DS_Store
	finalproject/app/models/interest.rb