Changed heartbleed jabber implementation to match openssl s_client

see here for example implementation:
https://github.com/openssl/openssl/blob/master/apps/s_client.c#L1719
Add module for eScan command injection
Fix disclosure date
Meterpreter sessions won't get root in this way
Added FTP STARTTLS support to heartbleed scanner.
Added @sensepost FTP implemenation
Fix merge error
Update to include SSL Version 3 protocol

SSL Version 3 will also respond to this and a server configured to respond to SSL version 3 but not TLS will show false negative without this option (proven).  May need to update cipher suites to include this option.
Updated hash value to SSLv3

Tested and working on server that has SSLv3 only enabled
Fix intendation
Add a link to explain about unmet exploit requirements
Added feature to dump to file leaked memory
Fix a few things in the Heartbleed modules
Bump version to 4.9.2
Land #3231, link exploit requirement details
Correct check_vars_get to check_request_vars

Since check_vars_get also checked for POSTs.
Reconcile test_old_rubies with the other checks

It is now check_old_rubies.
Use verbose by default
Land #3230, @Firefart's improve for jabber's starttls
Land #2324, @sensepost and @Firefart's sftp support for heartbleed