adds a simple check at the beginning of the script to determine if the script was run with root priviliges or not. If the script was run as root (or using sudo) the script will continue as normal. If not run as root the script will abort with an error.
This is a correction of the PR #5. According to the comment I got I can remove hyphen-fi hyphen-ga hyphen-id from the list since they are dependencies of the openoffice.org-hyphenation package and are installed automatically. This resolves issue #4.
I also added a command to the script which sets the additional keyboard layouts (arabian and persian) needed via command line. This resolves Issue #5.
This commit adds the missing language-packages to script, so those don't need to be installed manually through mintlocale anymore, after this script was executed.
