avoid wsgiapplication <-> MercurialHTTPServer circular reference

hgwebdir: break templater -> templater circular reference This is essentially another instance of the same problem fixed by the parent changeset. See its commit message for the details.

hgweb: break templater -> templater circular reference The problem were some functions passed in the "defaults" argument during the templater creation which use "self.t" directly. This creates the cycle: hgweb object -> templater object -> defaults dict -> footer function -> hgweb object Instead of completely avoding the cycle, we break it after using the templater.

Add hg-relink script to contrib

merge with crew-stable

Fixed synopsis for some mq commands

hg qseries -m: guards file was not ignored

Tests for qapplied/qunapplied fixes (417c2068cb92 and ce6c364ebb2a)

Simplified qseries and hg qapplied to fix some bugs caused by optimization: - hg qapplied -v now works consistendly to hg qunapplied -v, i.e. showing guarded (or unapplied because they were guarded during hg qpush) patches. - hg qapplied <patchname> now works again

Fix issue443: inconsistent output of "hg qunapplied -v" 1. Don't skip over unpushable (guarded) unapplied patches. 2. Don't display unpushable patches, unless -v is given, otherwise guarded and unguarded patches can't be distinguished.