version to 0.1.0

* configure/init pattern for setting up AR (#1)
* migration helpers (#2)
* ardb cli bin and command framework (#3)
* migrate sub-command (#10)
* create subcommand (#11)
* drop subcommand (15)
* generate subcommand and migration implementation (#16)
* Usage updates (#18)
* support sqlite adapter (#19)
* model each adapter(#20)
* have migration helpers use adapters for adapter-specific behavior (#21)
* have the create and drop subcommands use the adapters (#22)
* handle logger configuration (#24)
* have the migration generator include the migration helpers (#26)
* adding test helpers for handling AR in a test suite (#27)
* adapter-specific `drop_tables` helper (#30)