Added an emitMany() and separated emit().
Added priority and once as arguments instead of a map.
Added custom types.
Test fixes.
Quick polish.
Merge pull request #23 from milesj/event-package

Event Package
Used an enum for server types.
Changed the events used.
Added a getter and setter for bootstrap path.
Added TESTING server type.
Updated to make fallback optional. Will throw an error instead.
Moved bootstrapping to Host.
Merge pull request #24 from milesj/env-package

Env Package