testdouble/lineman-bower — pull request #1 by anpieber (2013-12-19 12:42:00+00:00)
Title: Fixes the deletion of the target directory after installation

Looking into the documentation of the grunt-bower-task we read:

options.cleanTargetDir: Will clean target dir BEFORE running install.
options.cleanBowerDir: Will remove bower's dir AFTER copying all needed files into target dir.

Therefore, what we really want is cleanTargetDir instead of
cleanBowerDir