First iteration to update Help section

Changes from Fla

This prevents connecting to the database on rake assets:precompile,
which fails in certain build environments.

Running git blame on this and figuring out what in gods name this
is for, is for another time.

	modified:   app/assets/stylesheets/mobile/mobile.scss

	modified:   app/assets/stylesheets/mobile/mobile.scss

Fixes #5834

So we can correctly reference the images

This allows us to reuse any CSS we have, unify
their look and unify their look with the regular
page design.

This works by instantiating ActionView and rendering
templates in a rake task.

Inspired by the errgent gem.

center pagination

Fix pagination css

Symbols for previous and next

	modified:   app/assets/stylesheets/conversations.scss
	modified:   app/views/conversations/index.haml

Add responsive pagination

Fix broken pagination

	modified:   app/assets/stylesheets/conversations.scss
	modified:   app/views/conversations/index.haml

Fix broken pagination for mobile

Mobile pagination

Unify desktop and mobile background

change background color

Add ball.svg to /graphics

Also make sure comments_count and the like is always set in the
response.

- added shoulda-matchers gem for one-line specs
- added FactoryGirl syntax methods