tests for bundles and bundlerepo

add support for compressed bundle repositories we simply create a uncompressed bundle in a tempfile in .hg

revert: fix corner case found by faheem mitha. if file not in dest manifest, remove only if in source manifest.

Make it possible to use the root directory as the root of a repository.

Fix issue240: mq: qpush fails on Solaris

merge with crew.

fix coding style of backout editor change.

Force editor to appear for an 'hg backout' if a message or logfile aren't supplied. Pre-fill the commit message with the changeset being backed out. Fixes bug 238.