Fix gem source
Add gem license
Fix path
Replace rcov by simplecov
Require mongoid >= 3; adjust Boolean field type
Install latest gems from GitHub
Fix Travis config
Adjustments for mongoid 3
Don't support former error handling
Test error response
Minor refactoring
Clean up specs
Join error messages
Minor refactoring
Remove http verb methods from model;

It's much cleaner to send requests through the
client instead.
Grant public access to Service#client
Clean up specs
Remove ignored .bundle