Remove support for Bower

Bower is still being maintained, but they began recommending that folks
use alternative package managers going forward. So, it's slowly being
sunset.

More on their blog: https://bower.io/blog/

Author: tysongach

.npmignore

@@ -5,7 +5,6 @@
 .sass-cache
 .scss-lint.yml
 bin/
-bower.json
 circle.yml
 CODE_OF_CONDUCT.md
 contrib/

README.md

@@ -44,8 +44,6 @@ use out of the box and flexible enough to customize down the road.
    gem install neat
    ```
 
-    Alternatively, you can install Neat with [Bower].
-
 1. Install or update Neat’s dependencies:
 
    ```bash
@@ -75,7 +73,6 @@ use out of the box and flexible enough to customize down the road.
    them easily.
 
 [RubyGems]: https://rubygems.org
-[Bower]: http://bower.io
 
 ### Installation for Ruby on Rails 4.2+
 

RELEASING.md

@@ -4,7 +4,6 @@
   - `lib/neat/version.rb`
   - `core/_neat.scss`
   - `package.json`
-  - `bower.json`
 
 1. Update `CHANGELOG.md`