[MERGE] new command pack

[Martin Pool]

Martin Pool has voted +1.
Status is now: Semi-approved
Comment:
+    def run(self, branch_or_repo='.'):
+        dir = bzrdir.BzrDir.open_containing(branch_or_repo)[0]
+        try:
+            branch = dir.open_branch()
+            repository = branch.repository
+        except errors.NotBranchError:
+            repository = dir.open_repository()
+        repository.pack()

Incidentally, maybe we should separate out a method for "open 
repository, or repository of a branch"?

It might be nice to show the name of the repository being packed.

Maybe the default implementation should say that it's not going to do 
any packing?

ok to merge regardless.

For details, see: 
http://bundlebuggy.aaronbentley.com/request/%3C1184230558.12144.89.camel%40localhost.localdomain%3E