Merge pull request #130 from goehle/newreadme

Add README.md page
Merge pull request #121 from openwebwork/release/2.9

Release/2.9
Update to _compoundProblem5_init

Changed _compoundProblem4_init to _compoundProblem5_init
Merge pull request #142 from paultpearson/patch-4

Update to _compoundProblem5_init (develop)