Bump to v4.0.0

Author: glebm

CHANGELOG.md

@@ -6,6 +6,10 @@ The changelog only includes changes specific to the RubyGem.
 The Bootstrap framework changes can be found in [the Releases section of twbs/bootstrap](https://github.com/twbs/bootstrap/releases).
 Release announcement posts on [the official Bootstrap blog](http://blog.getbootstrap.com) contain summaries of the most noteworthy changes made in each release of Bootstrap.
 
+# 4.0.0
+
+No gem-specific changes.
+
 # 4.0.0.beta3
 
 No gem-specific changes.

README.md

@@ -17,7 +17,7 @@ Please see the appropriate guide for your environment of choice:
 Add `bootstrap` to your Gemfile:
 
 ```ruby
-gem 'bootstrap', '~> 4.0.0.beta3'
+gem 'bootstrap', '~> 4.0.0'
 ```
 
 Ensure that `sprockets-rails` is at least v2.3.2.

lib/bootstrap/version.rb

@@ -1,4 +1,4 @@
 module Bootstrap
-  VERSION       = '4.0.0.beta3'
+  VERSION       = '4.0.0'
   BOOTSTRAP_SHA = '8a628b943cf31ca0a002c08af661a95772480225'
 end