Howto remove 'inspection warns'?

Hi,

I just downloaded RM 5 RC (aka 125.39) but there is an annoying thing with inspection warns and Rspec.
Every describe and it statement is underlined because it should use quotes instead of double quotes according to Ruby Style Guide

There is another minor problem because it doesn't recognize anymore capybara stuff like visit xxx_path
ex. before { visit signin_path }
signin_path is underlined

be_valid matcher is no longer recognized.

so, is it possible to remove inspections from Rspec files?


Thanks