Updated for v3.20b

Renamed output file setup.exe to install_SBBS_v*.exe because InnoSetup
Warning: Setting the [Setup] section "OutputBaseFileName" to "setup" is not
recommended, all executables named "setup.exe" are shimmed by Windows
application compatibility to load additional DLLs, such as version.dll. These
DLLs are loaded unsafely by Windows and can be hijacked. Use a different name,
for example "mysetup".