Missing reference to string.lower in ARLFrame, and made string.match local in the main lua file. Also made string.format local in the frame file.

Author	Ackis <Ackis@dummy.example.com>
Author date	2008-11-25 20:47:44
Author local date	2008-11-25 20:47:44 +0000
Committer	Ackis <Ackis@dummy.example.com>
Committer date	2008-11-25 20:47:44
Committer local date	2008-11-25 20:47:44 +0000
Commit	516603982e45261aec7b8face64777f0aa5eb182
Tree	8451e185d0dd8515a677debe41c620c8e549dee2
Parent	4fe44b99767a60dcdfd6bd252929fb4d0630a60a

Missing reference to string.lower in ARLFrame, and made string.match local in the main lua file.  Also made string.format local in the frame file.