added baseline migration.
Merge pull request #96 from ucsflibtopfstedt/master

added baseline migration
removed unneccessary "zero" migration.
fixed edge-case bug that would report a migration error even on success when downgrading to migration version 0.
Merge pull request #97 from ucsflibtopfstedt/master

fixed edge case bug in migrations controller
added CLI mode check back in.
Merge pull request #98 from ucsflibtopfstedt/master

fixed regression.
Merge branch 'master' of github.com:ilios/ilios into bug1020