Add "install" command to caUtils.

+ Add install command, based on main line of `/install/inc/page2.php`.
+ Set up parameters and help messages.
+ Fix issue in caUtils.php preventing it from running without a database.
+ Issue remains that it wants the site to be hit via a web server before install
  command will work correctly.
Prevent PHP warning.

+ Fix logic error, previous version was checking for existence
  and then dereferencing anyway even if not present.
Add short options.

+ Add short options -q for --quiet and -d for --debug.
Merge pull request #40 from leftclickben/AddInstallToCaUtils

Add install to ca utils