localrepo: add set method to iterate over a given revset This should allow replacing a number of hand-rolled graph algorithms.

revset: add formatspec convenience query builder

revset: allow bypassing alias expansion For internal usage of revset queries, we don't want aliases breaking things.

merge with stable

subrepo: don't commit in subrepo if it's clean If a subrepo has changed relative to the outer repo's substate, but the subrepo itself is clean, we don't need to commit in the subrepo.

rebase: block collapse with keepbranches on multiple named branches (issue2112) Collapse and keepbranches should be blocked when there is more than one named branch on the branch that's going to be rebased.

merge with stable

hbisect: do not assume that min(good) is an ancestor of min(bad) The included test used to report "inconsistent state", which is incorrect. While this situation cannot occur when the user sticks to the suggested bisect sequence. However, adding more consistent good/bad information to the bisect state should be tolerated as well.

hbisect: more consistent variable name

hbisect: confine loop to the relevant interval In this context we know that ancestors[rev] == None for all rev <= goodrev, so looping further back is unnecessary (and confusing).