* tasks/tasks.list
- add missing l10n tasks: gujarati-desktop, malayalam-desktop, tamil
- comment out l10n tasks for languages not supported in D-I, for
Icelandic, Irish, Serbian, Welsh and Xhosa
file header comments to there. Fix some bugs in passing.
* List packages for the various specific desktop tasks ahead of the non-key
packages for the general desktop task. Along with changes in tasksel 2.60
this should lead to a generally more useful set of packages on the desktop
CDs; instead of filling up with OOo, it will fill up with things specific
to the desktop environment.
* Updated task lists.