Invoice reports

[Geert Janssens]

GnuCash has currently 4 separate reports to produce an invoice:
- Easy Invoice
- Fancy Invoice
- Printable Invoice
- Tax Invoice (eguile)

I can understand the tax invoice being created to introduce and experiment 
with e-guile based reports (which at first sight are much easier to understand 
and maintain than their none-e-guile based equivalents).

But what's the story behind the other three ? They all seem to offer similar 
functionality, and only differ in some options. How come GnuCash ended up with 
three such reports ?

Geert