Merge pull request #3264 from Karlson2k/win32_build_packages

Update of win32 build package download system
[EPG] Don't perform updates during video playback.

Lag and stutter may ensue.
Merge pull request #3294 from t-nelson/pivos_pvr

Pivos PVR changes
[win32] Download and extract PCRE depend package
[win32] Use headers and static libs from PCRE package
[win32] Remove PCRE project from solution
[win32] Remove win32 PCRE lib source files
[win32] Delete old unused PCRE package files