test-convert-mtn.t: generate files in binary mode

test-convert-mtn.t: use #if to set mtndir to the correct value Monotone store directory name is not the same on Windows and Unix.

test-convert-darcs.t: fix elementtree test On OSX, the test succeeds because darcs aborts when trying to convert the dummy repository, and the test only grep for the output. On Windows, the darcs call succeeds for some reason but darcs fails to emit any output, which is not a valid XML output, which causes a traceback including the ElementTree string matched by the check, and makes a false positive. Check with a real repository instead. The darcs upgrade test is moved at the end so we can use our handmade darcs repository for the test.

test-convert-svn-branches.t: fix self call failure on Windows The error message is preceded by a cmd.exe error.

record: checks for valid username before starting recording process (issue3456)

test-hybridencode: test full range of ASCII codes from 126 to 255

test-hybridencode: remove x00 character case precludes implementation in C

Merge with crew-stable

Merge

subrepo: encode unicode path names (issue3610) Subversion 1.7 changes its XML output to include an explicit encoding tag: <?xml version="1.0" encoding="UTF-8"?> This triggers xml.dom.minidom to always return unicode strings, causing other parts of the code to explode. We unconditionally encode path names before handing them back, which works with both str (actually a no-op) and unicode values.