Changed quota setting for courier installations in authmysqlrc.master as ispconfig sets the quota with maildirmake command, so we do not have to specify a sql quota field.

Temporary fix for: FS#1311 - Only first PHPINIDir directive honored per configuration tree - subsequent ones ignored 

Added document_root_www field to the web_domain table. This field contains the symlink path to the website.

Removing white space in the remote_user.tform.php file while calling the client_template_get_by_user function. Reported by ispcomm

- Fix some comments.

Fix typos, path to file which was moved and renamed and replace "which mdadm" call to file_exist('/proc/mdstat') as we are not using mdadm in this script anyway.