Bump to 4.0.0.alpha3.1

Author: glebm

CHANGELOG.md

@@ -5,3 +5,8 @@ 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.alpha3.1
+
+This release corresponds to the upstream Bootstrap 4 Alpha 3.

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.alpha3'
+gem 'bootstrap', '~> 4.0.0.alpha3.1'
 ```
 
 Ensure that `sprockets-rails` is at least v2.3.2.
@@ -78,7 +78,7 @@ Then, run `bundle`, restart the server, and require tether before bootstrap but
 Install the gem:
 
 ```console
-$ gem install bootstrap -v 4.0.0.alpha3
+$ gem install bootstrap -v 4.0.0.alpha3.1
 ```
 
 **If you have an existing Compass project:**

lib/bootstrap/version.rb

@@ -1,4 +1,4 @@
 module Bootstrap
-  VERSION       = '4.0.0.alpha3'
+  VERSION       = '4.0.0.alpha3.1'
   BOOTSTRAP_SHA = 'c7de6107a86ebe65a6f5d5b88884256e5094ca92'
 end