add some debug for the UI hooks (for menu support)

so use wc_str() instead - closes #362

Now it looks almost like an exerpt from The Daily WTF :(

because the buggy GUI toolkit that sucks big time^W^W^W^W^W^W^WwxWidgets
needs it

* minor fix (capitalise string at the bottom of the pl, don't create temporary strings if you don't use stringWithFormat)

mkv.cpp: added option "mkv-preload-local-dir", disable when there are broken files in the same dir (eMule)

* modules/audio_filter/resampler/bandlimited.c: re-enabled the bandlimited resampler. Commit 12102 is actually bogus since the problem is in fact created by the audio output pipeline introducing more latency than what can be compensated by the default input caching.

  Sigmund says that YUVP rendering sucks and that he wants his 256 YUVA renderer back.
  Who exactly remembers why this one was removed ???

* The PTS/PCR repeats we test for should at least continue for 1s before we consider it to be the EOF of a QTSS VoD session.

* if a PTS keeps repeating for a while we assume EOF. This fixes QTSS VoD which VLC kept open after it was finished.
  The limit i chose in Demux() is 5 loops of Demux() with the same pcr. It's based on nothing, but I assumed it was more safe then checking for a single repeat of a PTS value. That might be allowed in some cases????