Remove some older JS dependencies to allow building on Apple silicon

Gemfile

@@ -50,9 +50,9 @@ gem "font-awesome-rails", '~> 3.2.1.0'
 # in production environments by default.
 group :assets do
   gem 'sass-rails',   '~> 3.2.3'
-  gem 'coffee-rails', '~> 3.2.1'
-  gem 'uglifier', '>= 1.0.3'
-  gem 'therubyracer'
+#  gem 'coffee-rails', '~> 3.2.1'
+#  gem 'uglifier', '>= 1.0.3'
+  gem 'mini_racer'
 end
 
 group :development, :test do

Gemfile.lock

@@ -62,13 +62,6 @@ GEM
     cocaine (0.5.8)
       climate_control (>= 0.0.3, < 1.0)
     coderay (1.0.9)
-    coffee-rails (3.2.2)
-      coffee-script (>= 2.2.0)
-      railties (~> 3.2.0)
-    coffee-script (2.2.0)
-      coffee-script-source
-      execjs
-    coffee-script-source (1.6.2)
     concurrent-ruby (1.1.9)
     connection_pool (2.2.1)
     css_parser (1.3.5)
@@ -80,8 +73,6 @@ GEM
     diff-lcs (1.3)
     erubis (2.7.0)
     eventmachine (1.0.4)
-    execjs (1.4.0)
-      multi_json (~> 1.0)
     factory_girl (4.2.0)
       activesupport (>= 3.0.0)
     factory_girl_rails (4.2.1)
@@ -131,7 +122,7 @@ GEM
     kiqstand (1.1.0)
       mongoid (~> 3.1)
       moped (~> 1.4)
-    libv8 (3.11.8.17)
+    libv8-node (15.14.0.1)
     listen (0.7.3)
     lumberjack (1.0.3)
     mail (2.5.5)
@@ -140,6 +131,8 @@ GEM
     method_source (0.8.1)
     mime-types (1.25.1)
     mini_portile2 (2.4.0)
+    mini_racer (0.4.0)
+      libv8-node (~> 15.14.0.0)
     mongoid (3.1.7)
       activemodel (~> 3.2)
       moped (~> 1.4)
@@ -207,7 +200,6 @@ GEM
     redis (3.3.3)
     redis-namespace (1.5.3)
       redis (~> 3.0, >= 3.0.4)
-    ref (1.0.4)
     rspec (2.13.0)
       rspec-core (~> 2.13.0)
       rspec-expectations (~> 2.13.0)
@@ -265,9 +257,6 @@ GEM
     terminal-notifier-guard (1.5.3)
     test-unit (3.6.1)
       power_assert
-    therubyracer (0.11.4)
-      libv8 (~> 3.11.8.12)
-      ref
     thin (1.5.1)
       daemons (>= 1.0.9)
       eventmachine (>= 0.12.6)
@@ -282,9 +271,6 @@ GEM
       jwt (>= 1.5, <= 2.5)
       nokogiri (>= 1.6, < 2.0)
     tzinfo (0.3.60)
-    uglifier (1.3.0)
-      execjs (>= 0.3.0)
-      multi_json (~> 1.0, >= 1.0.2)
     whenever (0.9.4)
       chronic (>= 0.6.3)
     will_paginate (3.1.6)
@@ -304,7 +290,6 @@ DEPENDENCIES
   bootstrap_form
   braintree
   bugsnag
-  coffee-rails (~> 3.2.1)
   dalli
   declarative_authorization
   factory_girl_rails
@@ -319,6 +304,7 @@ DEPENDENCIES
   json
   kiqstand (~> 1.1.0)
   mimemagic!
+  mini_racer
   mongoid
   mongoid-paperclip
   multi_json
@@ -342,10 +328,8 @@ DEPENDENCIES
   strong_parameters
   terminal-notifier-guard
   test-unit (~> 3.0)
-  therubyracer
   thin
   twilio-ruby (~> 5.10.7)
-  uglifier (>= 1.0.3)
   whenever
   will_paginate