Extends the "about" page
Adds O'Reilly-UG-program
Updates the legal page
adds small refactoring
dds link to the legal stuff
Adds some more informations to the about-page

This adresses Issue #55
Merge pull request #58 from heiglandreas/hotfix/addErrorMessagesToEditForms

Hotfix/add error messages to edit forms
Merge pull request #59 from heiglandreas/feature/addInfo

Feature/add info
Adds missing Strategy-class