New gateway and slight mod for sms.module

Hi all,

I have just finished a gateway module for Txtlocal (http://www.txtlocal.com), and would like it make it available for inclusion in the SMS Framework package. The module was written for 6.x and supports inbound and outbound messaging with all of txtlocal's extended options (specify sender, delayed send, message reference, WAP PUSH).

I had to make a slight mod to sms.module because the receiver MSISDN is important for my project. I have written it to the phpdoc header in the gateway module, but here it is:
* IMPORTANT FOR INCOMING MESSAGES: If you want to use the txtlocal receiver MSISDN
* (inNumber) then the sms_incoming() callback in sms.module must support an
* $options array as a third argument, and must pass this array on to the
* processors. The inNumber is the MSISDN number that received the SMS message.

The sms_send() function already supports $options, so I think that it would be good to include this as a change to sms_incoming(). Diff below:

46c46
< function sms_incoming($number, $message) {
---
> function sms_incoming($number, $message, $options = array()) {
48,50c48,50
<   module_invoke_all('sms_incoming', 'pre process', $number, $message);
<   module_invoke_all('sms_incoming', 'process', $number, $message);
<   module_invoke_all('sms_incoming', 'post process', $number, $message);
---
>   module_invoke_all('sms_incoming', 'pre process', $number, $message, $options);
>   module_invoke_all('sms_incoming', 'process', $number, $message, $options);
>   module_invoke_all('sms_incoming', 'post process', $number, $message, $options);

Please let me know if there is anything else I should do, or anything you want to discuss.

I also offer to extend the Clickatell gateway module to support inbound messaging, since I will be needing this for my project.

Thanks in advance!