changed to RSpec's expect syntax

I decided to change clearance to expect syntax for a project I was working on.  If, you want what I did, great!  If, not, you can just close this.

Please note, I have not done a poll request before.  If I have done it incorrectly, I apologize.
I added that to make sure that it forced the expect syntax.  What started this little sleigh ride was I was using suspenders which has this in the rspect config.  Then when I added clearance, I had many failures because clearance used should.  While expect is the new default, I thought it would be nice to mimic suspenders.  This could be taken out.