Update in 3.3.1
General
1 - Added more error handling.
2 - Updated npm dependencies.
Fixes
1 - #72: Installation in Netbeans 12.3 on OpenJDK 11 with Minifierbeans-3.3.0 not working.
2 - #75: Change --language_out from STABLE to other spec.
3 - #82: Exception while unzipping.
