fix gemfile

Gemfile

@@ -1,3 +1,6 @@
-gem 'twee2', git: 'https://github.com/harvimt/twee2.git', branch: 'release-0.6.0'
+source 'https://rubygems.org'
+#gem 'twee2', git: 'https://github.com/harvimt/twee2.git', branch: 'release-0.7.0'
+gem 'twee2', path: '../twee2'
 gem 'rake'
-gem 'colorize', git: 'https://github.com/fazibear/colorize.git'
+gem 'colorize'
+gem 'uuidtools'