[WINDOWS] Add use of libbz2 (bzip2) 1.0.6 DLL for Windows build
[WINDOWS] Add libmagic DLL 5.03 for Windows build.
[WINDOWS] Need to specify magic database location.
[WINDOWS] Installer improvement
Enable compiling with older glib versions (a function used is 2.32+ only)

Improve feedback in processing malformed bzip files