Added text files to track examples and errors.
TODO: move examples and issues to the github proper wiki pages
added several examples classes customized from the tutorial.
added several customized classes from the tutorial on ows services.
There are many bugs to fix, and some more method must be implemented.
TODO: find documentation about best-practices, in particular for the
ServiceInfo definition.
Fixed some bugs in basic service.
TODO: 
- expand parameters
- more documentation