Translations: update Spanish
all: determine current executable's path at startup
mmg: determine mkvmerge's location from mmg's location on all OS
make overload resolution unambiguous
ChangeLog update
mmg: don't allow subtitle charset setting for subs in Matroska
mmg: set sub charset drop-down box correctly if track doesn't have one

Fixes #1008.
ChangeLog update
installer: remove Brazilian Portuguese translation files on uninstallation

Fixes #1011.
install changelog with dh_installchangelogs
Update docs
Merge pull request #28 from darealshinji/patch-1

install changelog with dh_installchangelogs
Translations: update Basque
build system: adjust to poedit style for Basque translations
man pages: update mkvmerge identification output example
Update cs.po

Updated Czech language v6.9.1
Merge pull request #29 from Trottel/patch-3

Update cs.po
mkvmerge: add attachment UID to verbose identification output
mkvmerge: remove trailing superfluous chapter entries from MPLS

Patch by Andrew Dvorak.
all: close redirected stdout before global destruction

If it's redirected to a file then this is an instance of a buffered file
writer. If it's only collected via global destruction after its
reference count reaches zero then flushing the buffers will call some
debugging option stuff which is invalid at that point.