pull/unbundle: raise an exception on premature EOF

Add checks for programs which are required for the test suite to run. All prerequisite programs are checked for existance, and if any are missing, a list of missing programs is printed, and the test suite is aborted. All programs currently used in the tests, except those in core-utils, are checked.

hgit -> hgk.py Move hgit to hgk.py - importing hgit as an extension created compiled hgitc, which was confusing - hgit existed to support hgk so it was slightly misnamed - removed executable bit as we no longer run it directly - add 'view' command so we can run hg view - change git-* commands to debug-* so hg help won't show them - chdir to repository root on view so hgk doesn't choke in subdirs

Add a favicon.ico, small version of the main HG image.

Fix dirstate.changes for ignored directories. Do a second walking pass to examine any leftover files in the dirstate map that are in the .hgignore file but match our search criteria. This fixes the case of entire directories never being examined due to their presence in the .hgignore file, and should hopefully not add any significant overhead.

Fix cut and paste error in hgweb.py

Fix man page typos

Clean up RPM spec file

Update version number in PKG-INFO

Fix ignore regression. An empty or non-existent hgignore file must return False (don't ignore) for everything.