Launch4j 3.50 released

• Ticket #218, #222 Support min/max version check during path search (Barry McGillin, Han Shum).
• Ticket #224 Setting multiple relative paths for bundled JREs is not working (Wladimir Leite).
• Simplified and consistent configuration for finding 64-Bit runtimes and JDKs during path and registry search.
• Path is now the primary search, registry secondary for better compatibility with latest runtimes.
• Please see the docs regarding configuration changes.