localrepo: introduce bookmarkheads Similar to branch heads we introduce the notion of bookmarkheads. Bookmarkheads are changests that are bookmarked with the given bookmark or a diverged version

bookmarks: delete divergent bookmarks on merge

check-code: ignore naked excepts with a "re-raise" comment This also promotes the naked except check from a warning to an error.

check-code: improve detection of naked except clauses

cleanup: replace more naked excepts with more specific ones

check-code: promote 80+ character line warning to an error

cmdutil: use filectx.cmp() in amend()

largefiles: optimize performance when updating (issue3440) Previously, when updating, cachelfiles was called blindly on all largefiles in the repository at the revision being updated to, despite the fact that a list of which largefiles needs to be updated has already been collected. This optimization constrains the cachelfiles call to only the largefiles that need to be updated. On a repository with about 80 largefiles, updating between two revisions that only change one largefile goes from approximately 6.7 seconds to 3.3 seconds.

merge with stable

tests: make test-convert-darcs.t happier with darcs 2.8.0