Work around Mercurial issue618 in Arch backend.
authorW. Trevor King <wking@drexel.edu>
Tue, 19 Jan 2010 13:45:04 +0000 (08:45 -0500)
committerW. Trevor King <wking@drexel.edu>
Tue, 19 Jan 2010 13:45:04 +0000 (08:45 -0500)
commitbcb526c0c8c48cfdcd34765198642b06d915114e
tree396702297c2274aa323bf02a79fd4672167288af
parenta1eaad0ac5250ed062d86a3636ca06ec9aa95b67
Work around Mercurial issue618 in Arch backend.

Also add some NotImplementedErrors for clearer diagnostics.
libbe/storage/vcs/arch.py