treat rspec settings

Author: yuroyoro

.rspec

@@ -1,2 +1,3 @@
 --color
 --format documentation
+--exclude-pattern "spec/shared/*_spec.rb"

spec/spec_helper.rb

@@ -12,7 +12,7 @@
 Dir["#{File.dirname(__FILE__)}/shared/**/*.rb"].each {|f| require f}
 
 RSpec.configure do |config|
-  config.treat_symbols_as_metadata_keys_with_true_values = true
   config.run_all_when_everything_filtered = true
   config.filter_run :focus
+  config.expect_with(:rspec) { |c| c.syntax = :should }
 end