Changing default file type for user tasks from ics to xml

Hi,

I plan to change the default file type for user entered tasks
from ics to xml (see the DTD here
http://tasklist.netbeans.org/source/browse/tasklist/usertasks/src/org/netbeans/modules/tasklist/usertasks/translators/usertasks-1_0.dtd?rev=1.1&content-type=text/x-cvsweb-markup).

The main reasons for this are:
- We do not support the whole ics standard and once
    opened all unknown ics fields are stripped
- XML format is better for auto generating HTML
    during a build (Ant + XSL)
- There are many features in user tasks (especially subtasks)
    that are not supported by ics and we have to use
    NB-specific fields

Any suggestions or objections are welcome.

--Tim