Fix error on travis with mongodb
Add build branch result on README
Merge branch 'mongo_spec' of https://github.com/benoittgt/revue into mongo_spec
Change mongo gem version to avoid build error
Plug irc to the rest of the software

Still some issues with Revuedb class object (too much `.new()`). Need to
add plugin configuration and json output on sinatra or pandrino.
Remove class instance of @db, clean tests
First step for sinatra implementation
Merge branch 'master' into plugin

Conflicts:
	.travis.yml
	Gemfile.lock
Merge branch 'plugin'