Taskotron misses dropped subpackages

[Michael Schwendt]

Taskotron doesn't notice if subpackages have been dropped and cause
unresolvable dependencies because they are not obsoleted anywhere.

Examples: jogl2-javadoc, miglayout-examples, glusterfs-regression-tests
   rubygem-json-doc, rubygem-rake-doc, and more

Yum is broken in the same way. And by design. When installing a
discontinued subpackage, it happily installs any "old" packages it still
finds in the repos to satisfy dependencies, but it cannot upgrade the
installation afterwards because of unsatisfied deps.

[...]

Also a reminder for packagers:

Adhere to Fedora's Packaging Guidelines when removing subpackages!
Add proper Obsoletes tags to your package.

http://fedoraproject.org/wiki/Packaging:NamingGuidelines#Renaming.2Freplacing_existing_packages