Test kwfiles working context

Determine kwfiles on workingctx Added but not yet committed files should be shown. Removed but not yet committed files should not be shown.

test: use grep instead of grep -F

Test if debug flag influences expansion

Turn off debug while expanding We don't need templates like file_add etc. as keywords a file specific. Turning off debug avoids accidental expansion of such templates. As a side effect it speeds up expansion when running hg --debug. Functionality of _ctxnode now in new _substitute function.

Map re.escape

List comprehension instead of loop to create ui template dictionary

String format keyword pattern before compilation

Ignore errors when removing temp dir in kwdemo

Reduce verbosity of kwexpand/kwshrink

Make kwfilelog.cmp test reliable

Use revlog.cmp to avoid checking for rename twice

Test kwfiles command

New command "kwfiles" prints files configured for expansion

Always exclude .hgtags only .hgtags is the only tracked file that is written to just by issuing an hg command. This ensures that even a very unlikely tag like "$Id$" is processed properly.