list apps found but not included in any tasks; warn appropriately.
should -web be non-python specific? (task-web-content-devel?)
check for conflicting apps
separate package-specific stuff from builder scripts

Note: this source pacakge is currently an ugly hack, but it works.  
If you want to do anything to it, with it, or based upon it, please
contact me first.  Thanks.  - David Coe <david.coe@someotherplace.org>
