Invert mapper and allow functions
Update documentation
Add example. Remove console
Remove other console
Add mapper tests.
Merge pull request #14 from natgeo/feature/MIE-1336

Feature/mie 1336
Merge branch 'develop' of github.com:natgeo/modules-activitystream into feature/MIE-1337

Conflicts:
	app/scripts/main.coffee
Styling issue when there are few activities