Land android meterpreter reverse_http(s) and webcam_fixes branches with new binaries

@timwr landed my `metasploit-javapayload` PR to update the dalvikstager build process, so this is ready to land. This PR encompasses the following `metasploit-framework` PRs, which might need to be closed upon landing this (I'm not sure if github will otherwise detect they are fully merged):

See the [bottom comment](https://github.com/rapid7/metasploit-framework/pull/3086#issuecomment-42981570) for final verification steps/landing procedure.