clean up of event listeners in MarkerParentModel
Deprecate 'show' and move into options as 'visible'. Properly call scope apply on events so bindings are updated.
Merge from remote.
Update binaries.
Squash Commits together.
Merge branch 'develop' of github.com:angular-ui/angular-google-maps into develop

Conflicts:
	dist/angular-google-maps.js
	dist/angular-google-maps.min.js