Update better_errors 1.0.1 -> 2.1.1

Gemfile

@@ -265,7 +265,7 @@ group :development do
   gem 'web-console', '~> 2.0'
 
   # Better errors handler
-  gem 'better_errors', '~> 1.0.1'
+  gem 'better_errors', '~> 2.1.0'
   gem 'binding_of_caller', '~> 0.7.2'
 
   # thin instead webrick

Gemfile.lock

@@ -75,9 +75,10 @@ GEM
     base32 (0.3.2)
     bcrypt (3.1.11)
     benchmark-ips (2.3.0)
-    better_errors (1.0.1)
+    better_errors (2.1.1)
       coderay (>= 1.0.0)
       erubis (>= 2.6.6)
+      rack (>= 0.9.0)
     bindata (2.3.5)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
@@ -117,7 +118,7 @@ GEM
       numerizer (~> 0.1.1)
     chunky_png (1.3.5)
     cliver (0.3.2)
-    coderay (1.1.0)
+    coderay (1.1.1)
     coercible (1.0.0)
       descendants_tracker (~> 0.0.1)
     coffee-rails (4.1.1)
@@ -854,7 +855,7 @@ DEPENDENCIES
   babosa (~> 1.0.2)
   base32 (~> 0.3.0)
   benchmark-ips (~> 2.3.0)
-  better_errors (~> 1.0.1)
+  better_errors (~> 2.1.0)
   binding_of_caller (~> 0.7.2)
   bootstrap-sass (~> 3.3.0)
   brakeman (~> 3.4.0)