Bump to 2.1.0

[ci skip]

CHANGES

-# Unreleased
+# 2.1.0
 
+ * Support non-native line endings in Gemfile.lock (Paul Deardorff)
  * Support for ignoring warnings
  * Check for dangerous model attributes defined in attr_accessible (Paul Deardorff)
  * Update to ruby_parser 3.2.2

README.md

@@ -9,7 +9,7 @@ Climate](https://codeclimate.com/github/presidentbeef/brakeman.png)](https://cod
 
 Brakeman is a static analysis tool which checks Ruby on Rails applications for security vulnerabilities.
 
-It targets Rails versions 2.x and 3.x.
+It works with Rails 2.x, 3.x, and 4.x.
 
 There is also a [plugin available](http://brakemanscanner.org/docs/jenkins/) for Jenkins/Hudson.
 
@@ -124,6 +124,11 @@ To compare results of a scan with a previous scan, use the JSON output option an
 
 This will output JSON with two lists: one of fixed warnings and one of new warnings.
 
+Brakeman will ignore warnings if configured to do so. By default, it looks for a configuration file in `config/brakeman.ignore`.
+To create and manage this file, use:
+
+    brakeman -I
+
 # Warning information
 
 See WARNING\_TYPES for more information on the warnings reported by this tool.

lib/brakeman/version.rb

 module Brakeman
-  Version = "2.0.0"
+  Version = "2.1.0"
 end