Upgrade Brakeman from 3.1.4 to 3.2.1

Includes support for Rails 5, bug fixes, and various additional
vulnerability checks.

See Changelog for more information
(https://github.com/presidentbeef/brakeman/blob/master/CHANGES)

Gemfile

@@ -234,7 +234,7 @@ end
 
 group :development do
   gem "foreman"
-  gem 'brakeman', '~> 3.1.0', require: false
+  gem 'brakeman', '~> 3.2.0', require: false
 
   gem "annotate", "~> 2.6.0"
   gem "letter_opener", '~> 1.1.2'

Gemfile.lock

@@ -84,14 +84,12 @@ GEM
     bootstrap-sass (3.3.6)
       autoprefixer-rails (>= 5.2.1)
       sass (>= 3.3.4)
-    brakeman (3.1.4)
+    brakeman (3.2.1)
       erubis (~> 2.6)
-      fastercsv (~> 1.5)
       haml (>= 3.0, < 5.0)
       highline (>= 1.6.20, < 2.0)
-      multi_json (~> 1.2)
-      ruby2ruby (>= 2.1.1, < 2.3.0)
-      ruby_parser (~> 3.7.0)
+      ruby2ruby (~> 2.3.0)
+      ruby_parser (~> 3.8.1)
       safe_yaml (>= 1.0)
       sass (~> 3.0)
       slim (>= 1.3.6, < 4.0)
@@ -208,7 +206,6 @@ GEM
     faraday_middleware-multi_json (0.0.6)
       faraday_middleware
       multi_json
-    fastercsv (1.5.5)
     ffaker (2.0.0)
     ffi (1.9.10)
     fission (0.5.0)
@@ -706,10 +703,10 @@ GEM
     ruby-saml (1.1.2)
       nokogiri (>= 1.5.10)
       uuid (~> 2.3)
-    ruby2ruby (2.2.0)
+    ruby2ruby (2.3.0)
       ruby_parser (~> 3.1)
       sexp_processor (~> 4.0)
-    ruby_parser (3.7.2)
+    ruby_parser (3.8.1)
       sexp_processor (~> 4.1)
     rubyntlm (0.5.2)
     rubypants (0.2.0)
@@ -718,7 +715,7 @@ GEM
     safe_yaml (1.0.4)
     sanitize (2.1.0)
       nokogiri (>= 1.4.4)
-    sass (3.4.20)
+    sass (3.4.21)
     sass-rails (5.0.4)
       railties (>= 4.0.0, < 5.0)
       sass (~> 3.1)
@@ -742,7 +739,7 @@ GEM
     sentry-raven (0.15.6)
       faraday (>= 0.7.6)
     settingslogic (2.0.9)
-    sexp_processor (4.6.0)
+    sexp_processor (4.7.0)
     sham_rack (1.3.6)
       rack
     shoulda-matchers (2.8.0)
@@ -910,7 +907,7 @@ DEPENDENCIES
   better_errors (~> 1.0.1)
   binding_of_caller (~> 0.7.2)
   bootstrap-sass (~> 3.3.0)
-  brakeman (~> 3.1.0)
+  brakeman (~> 3.2.0)
   browser (~> 1.0.0)
   bullet
   bundler-audit