thoughtbot/dotfiles — pull request #184 by JoelQ (2013-08-23 21:35:18+00:00)
Title: Don't cache CtrlP results when using ag

It gets very annoying to manually force CtrlP to re-index every time I
add a new file. Since ag is so fast, we can turn off caching when it
powers CtrlP without any noticeable impact on search speed.