Quickfix: extension .gcode wasn’t recognized
Aesthetic changes

* Removed debugging messages
* Removed obsolete comments
Fixes #34 — added a JVM option “flatness”

Flatness can be set by passing -Dflatness=<number> to the JVM. When
active, only straight line will be present in the output.
Refs #29 — Added DOV output
Fixed indenting of switches
refs #29 – Output modules now take a “bounding box” argument

This finally fixes truncated PDF and SVG output.
GCode output is no longer normalized to 65536x65536.
This will allow DOV output to indicate the real width and height.
Better error messages