Use charlock_holmes 0.7.5

Gemfile

@@ -232,7 +232,7 @@ gem 'ace-rails-ap', '~> 4.1.0'
 gem 'mousetrap-rails', '~> 1.4.6'
 # Detect and convert string character encoding
-gem 'charlock_holmes', '~> 0.7.3'
+gem 'charlock_holmes', '~> 0.7.5'
 # Faster JSON
 gem 'oj', '~> 2.17.4'

Gemfile.lock

@@ -117,7 +117,7 @@ GEM
       activesupport (>= 4.0.0)
       mime-types (>= 1.16)
     cause (0.1)
-    charlock_holmes (0.7.3)
+    charlock_holmes (0.7.5)
     chronic (0.10.2)
     chronic_duration (0.10.6)
       numerizer (~> 0.1.1)
@@ -986,7 +986,7 @@ DEPENDENCIES
   capybara (~> 2.6.2)
   capybara-screenshot (~> 1.0.0)
   carrierwave (~> 1.1)
-  charlock_holmes (~> 0.7.3)
+  charlock_holmes (~> 0.7.5)
   chronic (~> 0.10.2)
   chronic_duration (~> 0.10.6)
   concurrent-ruby (~> 1.0.5)