add .coveralls.yml

Signed-off-by: crynobone <crynobone@gmail.com>
Add badge.

Signed-off-by: crynobone <crynobone@gmail.com>
Merge branch '2.0'

Conflicts:
	composer.json
update badge to follow branch.

Signed-off-by: crynobone <crynobone@gmail.com>