Add #3463 commits from @ghost
msftidy up splunk_upload_app_exec
Xerox Workcentre firmware injection exploit
Updated to module based feedback from wchen-r7
Fix a simple typo
Merge #3507 into local, recently updated branch of master for landing
Fix splunk_upload_app_exec to work on new installs.  Style
Land #3507/#3463, a communal effort around improving splunk_upload_app_exec
Pass msftidy, more descriptive name and description
Land #4091 - Xerox DLM injection
This is halloween.

THISISHALLOWEEN=1 ./msfconsole
Land #4111 - a little something for the holiday