Fix rspec command when just 'rspec' is called
Fix rspec command when just 'rspec' is called

Closes #38, see discussion there.

oggy/spring,y-yagi/spring,oggy/spring,universsky/spring-1,maclover7/spring,smathy/spring,slobodankovacevic/spring,grosser/spring,pigoz/spring,ypresto/spring,mariusbutuc/spring,rails/spring