Constraints support added
Merge branch 'master' of https://github.com/evanmiller/boss_db
ignores added
constraints_{update,create} changed to validation_tests(on_update|on
constraints_{update,create}() changed to
validation_tests(on_update|on_update)
Bug fixes
tests
try catch
constraints_{update,create}() changed to
validation_tests(on_update|on_update)
constraints_{update,create}() changed to
validation_tests(on_update|on_update)
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'evanmiller/master'

Conflicts:
	src/boss_db.erl
Merge pull request #64 from jdsieci/master

Constraints support