Creates simplecov exetrnal config

.simplecov

@@ -0,0 +1,4 @@
+SimpleCov.start do
+  add_filter '/spec/'
+  add_filter 'helper'
+end

spec/spec_helper.rb

@@ -1,6 +1,6 @@
 $LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
 
-require 'simplecov'
+require 'simplecov' # Used filters are in /.simplecov
 require 'rspec/its'
 require 'webmock/rspec'
 
@@ -9,11 +9,6 @@ if ENV['TRAVIS']
   SimpleCov.formatter = Coveralls::SimpleCov::Formatter
 end
 
-SimpleCov.start do
-  add_filter '/spec/'
-  add_filter 'helper'
-end
-
 # See http://betterspecs.org/
 RSpec.configure do |config|
   config.expect_with :rspec do |c|