Remove current_ability from application controller

Not used anymore, since we migrated to Pundit (#39)
Remove unnused project_mailer
Merge pull request #182 from neighborly/jl-remove-project-mailer

Remove unnused project_mailer
Remove need of setting more than one facebook_admin

According to Facebook Graph API docs, fb:admins meta tag stands to let
Facebook users manage/view insights[1] and comments[2] of a url. App
administrators are already included in this list, so there is no need to
accept more than one user in the helper.

[1]: https://developers.facebook.com/docs/insights/
[2]: https://developers.facebook.com/docs/plugins/comments/
Rename fb_admins helper to facebook_url_admin
Remove send to analysis code and project state
Merge pull request #186 from neighborly/jl-remove-in-analysis-state

Remove send to analysis code and project state
Rename project state event from approve to launch
Merge pull request #181 from neighborly/jl-remove-current-ability

Remove current_ability from application controller
Move some project scopes to admin

These scopes are used only on admin.
Rename Project#address and User#address to #location
Extract user/project address methods to a concern

close #53 and Close #52
Remove unused #to_a from Channel
Update neighborly-balanced-bankaccount gem
Improve #location= readability in location handler
Add force SSL and remove unnecessary force_http
Remove double quotes and change should to expect on project observer spec
Change push_to_soon event name to approve
Add approve project to channels admin
Create notification when project is approved