Quick Install Script Improvements

-When using the contrib AutoInstaller to install on pre-created db
-Check User DB connection before using root user
-AutoInstaller Examples of Use for OpenVZ added
-New cgi variable "no_root_db_access" explicitly clarifies cloning/migration installs
-Fixed indentation and removed tabs in Quick Installer Fix.
-4 spaces first indent, 2 spaces each indent thereafter on same line.
-Refactored Quick Install Fix
-Now allows Cloning / Migration on pre-created and pre-configured login/pass/dbname