Commit fails when comment contains non-ascii text

[Angel Aguilera]

When commiting files to a Subversion repository using Meld, the commit is not performed when the commit comment contains non-ascii characters (the same behaviour has been found when commiting to a Git repo).

This is my commit message:

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Refactorització
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Meld's standard error shows the following:

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Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/meld/task.py", line 110, in iteration
    ret = next(task)
  File "/usr/lib/python2.7/dist-packages/meld/vcview.py", line 664, in _command_iter
    yield "[%s] %s" % (self.label_text, msg.replace("\n", "\t"))
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 29: ordinal not in range(128)
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ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: meld 3.14.0-1
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
ApportVersion: 2.19.1-0ubuntu3
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Oct 27 12:56:09 2015
InstallationDate: Installed on 2013-10-30 (726 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
PackageArchitecture: all
SourcePackage: meld
UpgradeStatus: Upgraded to wily on 2015-10-23 (4 days ago)