Upgrade to launch4j 3.0.1 2008-07-20.

The license is BSD for launch4j and MIT for the wrapper code in head/

Changelog is in installer/lib/launch4j/web/changelog.html
Hopefully this will fix installs for 64-bit JRE on 64-bit windows.

The previous version was 2.0-RC3 2005-08-13.
The previous license was GPLv2 for launch4j and LGPLv2.1 for the wrapper code in head/

The bin/ld.exe and bin/windres.exe files were contributed by
i2p users in 2005 so the i2p installer could be built on windows.

They have not been updated for 3.0.1, so pkg builds on windows
will presumably still get 2.0-RC3.