Added .gitattributes

Signed-off-by: Jacob Kiers <jacob@jacobkiers.net>
Change colors=false to colors=true
Remove parameter should be passed reference
Update travis.yml
Throwing OAuthException without oauth_consumer_key
Merge remote-tracking branch 'vb/master'
Added tests for new required 'oauth_consumer_key'.

Signed-off-by: Jacob Kiers <jacob@jacobkiers.net>
Updated CONTRIBUTORS.md and started a change log.

Signed-off-by: Jacob Kiers <jacob@jacobkiers.net>