Revised public API (minor changes, triangulation of polygons)

v0.5.7

triangulation of polygons possible via public api

v0.5.6: Extrusion API improved. This will make extruding along paths much eas…

…ier to implement.

v0.5.5

uses new vvecmath version

v0.5.4

uses new vvecmath version with improved api for creating vectors

v0.5.3

Version 0.5.3 with support for vvecmath 0.3.6

v0.5.2: supports newest vecmath (now without dynamic version syntax, since ma…

…ven central does not support it)

v0.5.1

supports newest vecmath

v0.5.0

refactoring (part 1)

v0.4

3d text support, fixes

v0.3.2

Fix for issue #22