Bring rapid7#6793 up to date with upstream-master

Author: wchen-r7

.ruby-version

@@ -1 +1 @@
-2.1.9
+2.3.1

.travis.yml

@@ -10,7 +10,7 @@ addons:
       - graphviz
 language: ruby
 rvm:
-  - '2.1.8'
+  - '2.3.1'
 
 env:
   - RAKE_TASKS="cucumber cucumber:boot" CREATE_BINSTUBS=true

Gemfile

@@ -25,14 +25,14 @@ end
 
 group :development, :test do
   # automatically include factories from spec/factories
-  gem 'factory_girl_rails', '~> 4.5.0'
+  gem 'factory_girl_rails'
   # Make rspec output shorter and more useful
-  gem 'fivemat', '~> 1.3.1'
+  gem 'fivemat'
   # running documentation generation tasks and rspec tasks
-  gem 'rake', '>= 10.0.0'
+  gem 'rake'
   # Define `rake spec`.  Must be in development AND test so that its available by default as a rake test when the
   # environment is development
-  gem 'rspec-rails' , '~> 3.3'
+  gem 'rspec-rails'
 end
 
 group :test do