Added mssql_escalate_dbowner module
requested updates
removed scanner
fixed status
Fix #3973 - Unneeded datastore option URI

When Glassfish is installed, the web root is always /, so there is
no point to make this arbitrary.
land #3978, Fixes #3973, Wrong datastore option URI in glassfish_login
Make just one connection
Make easy method comments
Reduce code complexity
Use default value for doprint
Don't rescue everything
Do final cleanup
Land #3984, @nullbind's MSSQL privilege escalation module