add migration down()
add support for null values
add yargs dependency
add CLI class
add cli command base class
add basic cli test and opts fixture
export CLI
add basic db commands
add migate command
add simple 'binary'
rename to oriento
update README for new version
add contributing guide and license
remove lodash dependency
fix command name
Merge pull request #2 from codemix/rename

Rename to Oriento