Turn on Ruby Warnings on Test Suite

We were running our tests with warnings off, which meant we didn't notice
a bunch of warnings we were emitting.

Signed-off-by: Daniel Magliola <dmagliola@crystalgears.com>

Author: dmagliola

.rspec

@@ -0,0 +1 @@
+--require spec_helper

spec/spec_helper.rb

@@ -3,6 +3,10 @@
 require 'simplecov'
 require 'coveralls'
 
+RSpec.configure do |c|
+  c.warnings = true
+end
+
 SimpleCov.formatter =
   if ENV['CI']
     Coveralls::SimpleCov::Formatter