Conform to @booljs/api v0.6.x

Merge pull request #3 from BoolJS/develop

Update to @booljs/api 0.7.0

Major Refactoring now using mysql2

v0.1.1…v1.0.0

• Now uses mysql2 as a replacement for the outdated library mysql as well as the integration with mysql-wrapper, now working by default.
• Updated to support booljs.api@0.5.x.

Update to new plugins spec

v0.1.0

Update to new plugins spec.