test-notify: adapt to sed shipped with MacOS MacOS X' sed does not have the \? repetition operator.

git binary patches: don't print the header for identical files

git binary patches: use hashes to detect identical files

add test for diffing identical binary files

Don't lie that "binary file has changed" Without -a option to "hg diff", mdiff.unidiff reported that "Binary file foo has changed" without even trying to compare things. Now it computes MD5 of old and new files, compares them and makes the conclusion.

add some tests for qpush/qpop error codes

Modify qpush/qpop idempotent operations to return success Modify qpush/qpop such that idempotent instances of the operations return success. That is, repeated qpush -a, qpop -a, qpush patch-name or qpop patch-name will return success. The end goal of each of these operations is to reach a particular state. Whether or not the patches were already applied does not affect that state or operation status. Likewise, be careful to retain the error status on a qpush/qpop without arguments when the end/beginning of the series has been reached.

mq: propagate the return error of pop

util_win32.py: fix user_rcpath Fixes issue504.

Combined the two os_rcpath methods into a single one near rcpath in mercurial/util.py The os_rcpath method delegates to system_rcpath and user_rcpath from the different platform implementations.