Strip whitespaces

- Removed from .rb, .js, .css, .scss, .erb, .haml
- This commit will potentially cause a lot of merge conflicts, be
  careful
Merge pull request #341 from sharetribe/stripspace

Strip whitespaces
Merge branch 'master' into integrations

Conflicts:
	app/assets/javascripts/kassi.js
	app/controllers/admin/communities_controller.rb
	app/models/community.rb
	app/views/admin/communities/edit_look_and_feel.haml