first step of switch to opal

Gemfile

@@ -1,19 +1,7 @@
 source 'https://rubygems.org'
 
-gem 'volt', :path => "../volt"
 
-# volt uses mongo as the default data store.
-gem 'volt-mongo', '~> 0.1.0'
-
-# The following gem's are optional for themeing
-# Twitter bootstrap
-gem 'volt-bootstrap', '~> 0.0.10'
-
-# Asset compilation gems, they will be required when needed.
-gem 'csso-rails', '~> 0.3.4', require: false
-gem 'uglifier', '>= 2.4.0', require: false
-
-gem 'opal-pixi' , :path => "../opal-pixi"
+gem 'opal-browser'
 
 #gem "salama" , "0.2" , :path => "../salama"
 
@@ -32,13 +20,3 @@ group :test do
   gem 'chromedriver2-helper', '~> 0.0.8'
   gem 'poltergeist', '~> 1.5.0'
 end
-
-# Server for MRI
-platform :mri, :mingw do
-  # The implementation of ReadWriteLock in Volt uses concurrent ruby and ext helps performance.
-  gem 'concurrent-ruby-ext', '~> 0.8.0'
-
-  # Thin is the default volt server, Puma is also supported
-  gem 'thin', '~> 1.6.0'
-  gem 'bson_ext', '~> 1.9.0'
-end