Adding support for database connection on a non-standard port.
Just add ":port" to the DBHOST during the installation.
Merge remote branch 'infoza/develop' into feature/non-standard-port
Validate port during installation

Add help information about the non-standard port number to the popup tips in
the install screen.

Support MySQL 'localhost' connections using a non-standard port number.
Ordinarily, MySQL will ignore the port setting on *nix systems if the host
is specified as 'localhost'
Merge pull request #8 from greezybacon/feature/non-standard-port

Add support for non-standard MySQL port number

Reviewed-By: Peter Rotich <peter@osticket.com>