Added sample data stubs.
Added section to README.
Fix for database configuration factory.
Merge pull request #3 from zfcampus/feature/README-improvements-fix-for-db

README + sample data + db factory fix
[#3] Improve logic in factory

- Do not assume a key is present before pulling from it.
[#3] CS fixes

- trailing whitespace, EOF endings
Merge branch 'hotfix/3'

Close #3