resource files: switch to constants for the VersionInfo.

Inspired by http://code.google.com/p/tortoisegit/source/detail?r=b3b1d4f5614f1777f6457db77474fefdf0b49ef5
mplayerc.el.rc: fix VersionInfo not showing in Windows Explorer.

The langID must match the value used in the previous BLOCK and the charsetID must be 1253.
normalize rc files
MPCTestAPI.rc: bump copyright year and use periods in the version strings
apply astyle
Mpeg2DecFilter.cpp: fix a useless dereference
Initialize variables in the constructor.
Cppcheck fixes:

* reduce variable scope
* remove unneeded variable assignments