Orientation/Learning Documentation

The code in this pull request comprises of two parts:

1. Documentation as orientation or learning material. Some in class and class-feature note clauses and others in NOTES.txt (which--at it turns out--is not going to be my ultimate suggestion, but simply where we started).

2. Some changes I needed to get EWF to run on my local machine.

I am not sure to know those classes "REQUEST_URI_ROUTER or REQUEST_URI_TEMPLATE_ROUTER"
maybe this cames from old/obsolete doc.
probably mentioning WSF_URI_TEMPLATE_MAPPING and WSF_URI_MAPPING would be more accurate.