[imp] IMP and mobile browsers..

[Liam Hoekenga]

> Remove the isMobile() check in login.php.  i.e., in this revision:
> http://cvs.horde.org/co.php?r=2.287&f=imp%2Flogin.php
>
> Line 276 change from:
>   if ($browser->isMobile()) {
>
> to:
>   if (false) {

Ok, I tried this.. and users get stuck on a the mobile portal page, which 
is mostly blank, except for..

    Welcome, Liam Hoekenga

The url in my the location bar of the device I'm trying it...

     https://webmail.example.edu/horde/login.php?url%2Fhorde%2Findex.php

With normal users, we've got initial_application set, and merely going to 
/horde/ drops them in IMP.

Liam