Changing Database Schema commit

Committing database schema as a file per object rather than an single
schema file to make it easier to source control, and reduce conflicts as
the number of people working on the project increases.
Merge pull request #27 from nbrownrecom/master

Changing database schema to one file per object to better take advantage of source control
Merge branch 'master' into UCSF

Conflicts:
	.gitignore