started migrations for sqlite in tests/_files/db
added some migrations
using microtime, added some doc, added seed
Merge branch 'develop' into feature/db-testing

Conflicts:
	composer.lock
	src/Craven/Model/AbstractModel.php
testGetDBConnection
testing find
AbstractModel::getBy*
improving findBy
added CravenTest\DatabaseControls to expose seeding and migrations
\BadMethodCallException when AbstractModel::methodThatDoesNotExist is called
AbstractModel __isset and __unset