hgweb: shorten all the URLs in the standard templates A URL like this: http://www.selenic.com/hg/?cmd=changeset;node=5010207c35273ac1331cae44c253dd41fa07cb7f is now presented as: http://www.selenic.com/hg/?cs=5010207c352 (though the old style still works, of course)

hgweb: add shortcuts for all the web commands / fix empty arg bug

symlink unit test

allow empty values for url so we can have /?tip

hgweb: allow urls to be shorter by using shortcuts for example cs=xxx will be expanded to cmd=changeset;node=xxx

log: speedup keyword search when used with --branch By avoiding unnecessary branch lookup.

log: make keyword search truly case-insensitive