enthought/enstaller — pull request #82 by pankajp (2013-03-19 14:45:24+00:00)
Title: Egginst: Overwrite symlink on egg installs.

Prior to symlink changes, you could egginst a new/old egg version
over an existing egg install, which was broken in eggs having
symlinks. This commits makes them work again by overwriting
existing symlink instead of failing on them.