Patch Set 3: Looks good to me, but someone else must approve; No score

Ceiling support still makes some sense even in the EGit world.  Imagine your home directory is on NFS and the NFS is sort of slow, stating up during import just to find a .git might suck without EGit honoring some sort of GIT_CEILING_DIRECTORIES.  So it probably makes sense to support it to some extent.