Instant Message isComposing not implemented?

```

What steps will reproduce the problem?
1. Install X-Lite 4 on Windows
2. Send Instant message to IMSDroid from X-Lite
3. Start Typing in a second message from X-Lite

What is the expected output? What do you see instead?

First message comes over with XML node for
Second messages comes over with XML node for isComposing

expected to see text message. ;-)

What version of the product are you using? On what operating system?
Droid X Android 2.3.3, IMSDroid v2.0.431

Please provide any additional information below.

Attaching log and screenshot

I really like IMSDroid! Trying to get it setup for my son's WiFi only Droid X.

```

Original issue reported on code.google.com by `sean.co...@gmail.com` on 2 Nov 2011 at 1:20

Attachments:
- [device-2011-11-01-210749.png](https://storage.googleapis.com/google-code-attachments/imsdroid/issue-302/comment-0/device-2011-11-01-210749.png)
- [log.txt](https://storage.googleapis.com/google-code-attachments/imsdroid/issue-302/comment-0/log.txt)