Qt: First search host_bins directory for executables

This fixes the situation where both Qt4 and Qt5 are installed but the
global moc/rcc/uic commands are provided by Qt4 and Qt5's versions are
not globally installed. VLC previously picked up Qt4's moc/.. version
but built against Qt5.

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>
bs: fix character set brain damage
szl: add missing character set
ku: add missing character set
ur: add missing character set
Revert "make update-po"

This reverts commit 1dfb5bdadcdd6fc745a9a6f319b0a10c448b4f4d.
This blocks subsequent revert.
Revert "l10n: Hebrew update"

This reverts commit d7233ca7f34fe08758000d1a4a10a094fa1a2261.
This broke subtitles.
Revert "l10n: Latvian update"

This reverts commit 85d23edc2c6ad74caf0b10afd51fecc81dc200d2.

Conflicts:
	po/lv.po

This broke subtitles.