rebar/rebar — pull request #344 by evanmcc (2014-08-16 00:31:18+00:00)
Title: Manually clean up paths.

Using code:set_path/1 with very large paths is very slow on larger
projects. On my mid-sized project, it seems to take around .4s per
call. Emulating the call with direct path removal (using
code:del_path/1) seems to be quite a lot faster.