Add git-conventional-changelog
Merge branch 'develop' of https://github.com/nlaplante/angular-google-maps into develop
Merge branch 'develop' of https://github.com/nlaplante/angular-google-maps into develop
Add dependency status icon in README
Merge branch 'develop' of https://github.com/nlaplante/angular-google-maps into develop

Conflicts:
	README.markdown
js Grunt building added back in for concatenation,jshint, and specs #397
Setting up internal event hooks to map models to call
clusterMappedEvents

start on clusterMappedOptions

issue #393

@cthrax suggestions done
- last thing to test is actual events firing from the real
  clusterManager work
works but specs broken