Document the fact that revert might overwrite .orig files

Add a hint for revert --all when aborting

fix incorrect warning when walking on a particular rev when a directory was given instead of a file it reported incorrectly 'No such file or directory in rev <rev>' we test if the file is a prefix directory

fix errors reported by pychecker mercurial/merge.py:174: No global (mode) found mercurial/merge.py:253: No global (errno) found

Fixed an exception in notify extension (b2a_hex argument incorrect) Detailed messages was - incoming.notify hook raised an exception: b2a_hex() argument 1 must be string or read-only character buffer, not stringio

minor docstring fix for revert

Allow for MB/sec transfer rates in test-http-proxy and test-ssh. Also make the test more specific in test-http.

load extensions only after the ui object has been completely initialized This fixes a traceback printed when hg tries to print another traceback after an extension fails to be loaded. Add a test for that.

Only read .hg/hgrc files from trusted users/groups The list of trusted users and groups is specified in the [trusted] section of a hgrc; the current user is always trusted; "*" can be used to trust all users/groups. Global hgrc files are always read. On Windows (and other systems that don't have the pwd and grp modules), all .hg/hgrc files are read.

Fix hgk extension due to 4ec58b157265 refactoring