[lib-upgrade] upgrading to Java Service Wrapper Community Edition 3.5.20
- including 64bit windows support
- synced scripts with originals

release notes on http://wrapper.tanukisoftware.com/doc/english/release-notes.html#3.5.20 (jumped from .17 to .20)
Merge pull request #37 from dizzzz/feature/update-wrapper

[lib-upgrade] upgrading to Java Service Wrapper Community Edition 3.5.20