v1.2 [2018.02.03]
- add support for old v1.x format back from 2011 (tested on .SPB version 1.15 / multistage)
- packing type checked in header to detect requirement for gzip uncompression

v1.1 [2017.10.01]
- add drag'n'drop feature to the program window
- assembler code for setjmp() and longjmp() replaced with builtin functions

v1.0 [2017.04.07]
- first publice release