bobbymarko/twitter-bootstrap — comment on commit 6ffcd847994dddfa55942466cd96e71e725854d4
File:  line 0
By inmarelibero:

well I don't know, I made a PR changing only the less files. I think if you don't push to the master branch it should not be necessary to compile every time the css.
anyway I use Crunch and it seems to work for me