ui.paths: expand paths directly in fixconfig (issue2373) var and home expansion should be done first.

setup/hg: always load Mercurial from where it was installed. This provides two new features: - Mercurial may be installed into a non-standard location without having to set PYTHONPATH. - Multiple installations can use Mercurial from different locations.

revsets: add a sample query to the help for getting active branches

revsets: add descriptions for sample queries in the help

mq: silence spurious output. When using a versioned patch repository, you would get a spurious warning when deleting and adding the same patch. Before: $ hg qdelete --keep 3.diff $ hg qimport --existing 3.diff adding 3.diff to series file 3.diff already tracked! After: $ hg qdelete --keep 3.diff $ hg qimport --existing 3.diff adding 3.diff to series file

revsets: clarify in the help that head() returns named branch heads

tests: add testcase for 208fc9ad6a48 to test-alias.t The testsuite lacks a testcase for the bug introduced in 208fc9ad6a48. This patch amends 301d7626e0ff (which fixed 208fc9ad6a48) by adding a testcase for that bug. With 208fc9ad6a48, test-alias.t (as modified by this patch) fails with "hg tglog: invalid arguments".