update: change default destination to tipmost descendant (issue4673) (BC) Bare 'hg update' now brings you to the tipmost descendant (on the same branch). Leaving the user on the same topological branch. The previous behavior, updating to the tipmost changeset on the same branch could lead to jump from a topological branch to another. This was confusing and impractical. As the only conceivable reason for the old behavior have been address by the recently introduce message about other heads, we can "safely" change this behavior All test changes have been reviewed and seen a valid consequences.

test: drop useless --update flag in issue1502 tests The --update is unrelated to the test and has no effect as it fails anyway. Dropping it reduces the noise in the coming change in default destination for update.

treemanifest: don't use cp -T, not supported on OS X The OS X cp implementation has no -T switch. Copy directory contents using a glob instead.

chg: use in-tree hg executable to start server for testing

hgignore: ignore chg binary

chg: import frontend sources These files are copied from https://bitbucket.org/yuja/chg/ -r f897faa79687