Terminal emulation - 'screen' support incomplete

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Connect to a server, using default ConnectBot's settings. (Default settings 
include "screen" being selected as the terminal emulation mode.)
2. Run a command that outputs a sequence to set the terminal title. In my case, 
the shell has such a sequence in $PS1 prompt string.

What is the expected output? What do you see instead?
* Example string: "\x1Bktitletext\x1B\x5Cnormaltext", where 
"\x1Bk<text>\x1B\x5C" sets the window title in GNU Screen.
* Expected output: "normaltext" displayed, "titletext" either ignored (good 
enough) or displayed in a status bar (like the real 'screen' does).
* Actual output: "titletextnormaltext" displayed.

What version of the product are you using (you can see this by using Menu
-> About in the Host List)?
* 1.6.2

What type of system are you trying to connect to?
* irrelevant, but it's Linux.

If you are able to connect, what is the output of "echo $TERM", "uname -a",
and any other relevant information on the host?
* TERM=screen
* uname=Linux snow 2.6.34-ARCH #1 SMP PREEMPT Mon Jul 5 21:03:38 UTC 2010 i686 
AMD Athlon(tm) 64 Processor 3000+ AuthenticAMD GNU/Linux

Original issue reported on code.google.com by grawity@gmail.com on 6 Aug 2010 at 2:57

[GoogleCodeExporter]

Yeah, it actually only emulates vt100 with some xterm stuff. I think the 
default might be xterm-color now.

Original comment by kenny@the-b.org on 2 Sep 2010 at 5:10