ttf2pt1 release 3.3.5 - itermediate

The purpose of this version is to release the known
bug fixes before introducing the new major features.
Of which I have 2 sitting partially done:

- Support of the BDF source fonts (and probably other
bitmapped formats as well), the simple implementation
is mostly done.

- Better cleaning of the outlines. I have written an algorithm that plots a reasonably close Bezier curve
by a set of dots but the actual high-level logic
using this algorithm is to be written yet.