Merge pull request #99 from abasyrov/master

More problem polishing
Polishing at OPL IV
Polishing at OPL IV
Polishing at OPL IV
Polishing at OPL IV
Adding AlfredUniv problems to Pending
Adding a readme file to pending directory.
Initial version of the not used file.
Merge branch 'master' of https://github.com/openwebwork/webwork-open-problem-library