summary: allow color to highlight active bookmark

summary: show bookmarks separate from tags and note active mark (issue2892)

localrepo: make requirements attribute of newly-created repos contain a set This is for internal consistency, as this attribute typically contains a set

localrepo: fix comment on set

revert: restore check for uncommitted merge (issue2915) (BC) This will restore the pre-1.9 behavior.

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.