merge with stable

i18n-pt_BR: synchronized with 6783f47d90dd

merge with i18n

i18n-it: synchronized with adf3c4401c5d

osutil: fix up check-code issues

dirstate: flush _lastnormal when we see newer filesystem times

util: add Mac-specific check whether we're in a GUI session (issue2553) The previous test assumed that 'os.name' was "mac" on Mac OS X. This is not the case; 'mac' was classic Mac OS, whereas Mac OS X has 'os.name' be 'posix'. Please note that this change will break Mercurial on hypothetical non-Mac OS X deployments of Darwin. Credit to Brodie Rao for thinking of CGSessionCopyCurrentDictionary() and Kevin Bullock for testing.

rebase: allow for rebasing descendants onto ancestors on different named branches So far we've been denying rebasing descendants onto ancestors, but there are situations in which this kind of operation makes perfect sense to me. Let's say we have made a commit (or more), that belongs to branch 'dev', on top of the named branch 'stable': ... a (stable) - b (dev) but then we realize that b should belong to branch 'stable'. In these cases a rebase means: "move these csets from named branch A to named branch B" and there isn't a valid reason to deny it. This patch basically doesn't block it, if source and destination are on different named branches. The old behaviour still applies for rebases across the same named branch. Can you think of any tricky corner cases in which this new behaviour could lead to problems? (I bet there are tons of them...) By the way, I created a brand new .t because I feel there should be more tests I can't think of at the moment.

bdiff.c: rename all variables which hold a hash value to "hash"

bdiff.c: use unsigned arithmetic for hash computation Signed integer overflow is undefined in C.

bdiff.c: cast to unsigned char when computing hash value

bdiff.c: make all local functions static

merge with stable

debugbundle: fix up long line caught by check-code

wireproto: avoid naked excepts

mq: fix typo in docstring

commands: add debugbundle command Lists ids contained in a bundle file. Useful for testing bundle-related commands.

wireproto: add known([id]) function known([Node]) -> [1/0] Returns 1/0 for each node, indicating whether it's known by the server. Needed for new discovery protocols introduced in later patches.

wireproto: fix decodelist to properly return empty list Needed by tests for next patch introducing known().

wireproto: fix handling of '*' args for HTTP and SSH

debug: add debugwireargs to test argument passing over the wire Tests argument passing locally, via HTTP, and via SSH. This is mainly preparation for the next patch.

sshserver: drop unnecessary line

merge: avoid unlinking destination of merge when case changes (issue2715)

dirstate: introduce a public case normalizing method

changegroup: minor cleanups

repair: revlog has an iterator

changegroup: fix leftover from delta read

changegroup: drop expensive redundant usage of readdelta for progress

changegroupsubset: use manifest.readfast to simplify collector

manifest: add readfast method