Remove meterpreter source

Replace with a README pointing at the new repo:
https://github.com/rapid7/meterpreter
Add module for MS13-037 CVE-2013-2551
Suport js obfuscation for the trigger
Add DEP bypass for ntdll ms12-001
Land #1946, remove Meterpreter source
Remove javapayload source

Replace with a README pointing at the new repo:
https://github.com/rapid7/metasploit-javapayload
Fix description, code and perform test
Land #1947, remove JavaPayload source
Land #1945 - MS13-037 (CVE-2013-2551)