issue #1027 #1028

- onAdd override was unecessary and incorrect
Merge pull request #1029 from nmccready/issue_1027_1028

issue 1027 1028 clustering fixes
save off
save off
Merge pull request #1031 from nmccready/logger_spawning

logger spawning
build all
Merge branch 'master' into develop

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