Don't use bundler 1.5 on ruby 1.9
Don't use bundler 1.5 on ruby 1.9

It breaks for some reason. I can't reproduce locally. Sigh.

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