util: add helper function isatty(fd) to check for tty-ness

web: prevent TypeError thrown when using the diffstat templates Remove the lambda used to wrap webutil.diffstat because: - functions passed to the templater must accept keyword arguments - webutil.diffstat is a generator, so already calculates the diffstat lazily This reverts the changes made to 1d3e2349304a after it was submitted to the mailing list but before it was queued.

fileset: fix long line

COPYING: refresh with current address from fsf.org

filesets: introduce basic fileset expression parser

dispatch: add repo to the request allows callers of dispatch.dispatch to pass in an initialized repo object to be used. -R/--repository overrides the request repo.