some basic tests for build-schema
added documentation support, component, unique/value, type checking to the schema helper in core.clj. index has been changed to default to false, as it slows down the transactor and should be used only when someone knows what they are doing.
refactor and add more tests for build-schema and its fns
Began adding tests
* Updated to latest datomic-free
* Added tests for utility functions
tweak tests, make with-latest-database available in db

also bump datomic
remove attributes that return nil, fixes bug with :db/unique
thanks guys
standardize project