MComix SVN (old)

MComix 1.2.1

run: fix arguments handling on Windows

Of course we can't use os.execv on Windows because it will mangle
arguments containing spaces or non-ascii characters...

Bump version to 1.3.dev0.

MComix 1.2

run: fix command line switch --version

archive: fix 7z support for tar.xz archives

Updated ChangeLog and translation credits.

Updated Korean translation (by Gyeongmin Bak)

From: Gyeongmin Bak <drdrpyan@...>

archive: improve external RAR support

- check for `unrar-nonfree` when looking for an executable
- ignore `unrar-free`, as it's too limited to be of use
(only support RAR format 2, no password support,
different command line syntax, ...)

process: tweak find_executable

Add optional function argument 'is_valid_candidate': must return True if
the path passed in argument is a valid candidate (to check for version
number, symlinks to an unsupported variant, etc...).