[Portland] xdg-util feedback

[Benjamin Meyer]

In the event that the current desktop environment isn't detectable what do you 
thing of falling back to firefox, mozilla, and then netscape?  This should be 
able to catch a lot of cases especially on older systems.  This would also 
work for xdg-open sense netscape has its own mime system to open files that 
are not for the web browser.

Also you can detect if CDE is running with something like this:
xprop -root | grep DTWM_IS_RUNNING

Also when opening a file in KDE you want to use kfmclient exec and when 
opening a URL you want to use kfmclient openURL.  This is for cases such as a 
pdf file where you want the web browser to open it or any mime type that the 
browser isn't the primary (say if html was assigned to a editor and not 
konq).

-Benjamin Meyer