- updated Qt5.15 to 5.15.2
- fixed a bug related to PIC and NativeExecutive GLIBC injection
- backwards compatibility changes for Magic.TXD to target Qt5.12.8 (Lubuntu 20.04 system library version)
- adjustments to the Windows Qt5 build scripts
- fixed a bug to build Magic.TXD on real Linux (case sensitive FS, even ntfs-3g!)