Add images to posts

To avoid double-nesting of routes, had to add a url field to posts
instead of adding image table and a new controller.
Create post form partial, start css for images
Add post boxes on index and location index

Quick path for users to create a new ad, no matter where they enter the
site.

Add css for post photos

Add js for passing user from location selector to the location page, for
access to the new ad form.

Add css for admin sections of location and posts pages.
Apply admin style to locations show admin section
Fix jquery won't run unless you refresh page

Turblinks, which drastically improves performance when using jquery, has
a couple of issues with document loading and can break functions that
rely on page loading. The jquery-turbolinks gen fixes this.

1- Install jquery-turbolinks gem:
gem jquery-turbolinks

2 - In application.js, require it immediately after requiring jquery:

//= require jquery
//= require jquery.turbolinks

3 - Restart server
Implement search throughout all posts
Add post boxes on index and location index

Quick path for users to create a new ad, no matter where they enter the
site.

Add css for post photos

Add js for passing user from location selector to the location page, for
access to the new ad form.

Add css for admin sections of location and posts pages.

Fix jquery won't run unless you refresh page, caused by Turbolinks gem.

1- Install jquery-turbolinks gem:
gem jquery-turbolinks

2 - In application.js, require it immediately after requiring jquery:

//= require jquery
//= require jquery.turbolinks

3 - Restart server
Add choose... to location dropdown
Refactor search
Add stylesheet background mixins
Add neat formatting to photo and post boxes
Merge branch 'lea-add_images'

* lea-add_images:
  Add neat formatting to photo and post boxes
  Add stylesheet background mixins
  Refactor search
  Add choose... to location dropdown
  Add post boxes on index and location index
  Implement search throughout all posts
  Fix jquery won't run unless you refresh page
  Apply admin style to locations show admin section
  Add post boxes on index and location index
  Create post form partial, start css for images
  Add images to posts