v0.11.0

• Upgrade to CoffeeScript 2. The generated code will now not work in old browsers; open an issue if you have any problems.
  • Also upgrade browserify and coffeeify
• Move executable script into bin directory, removing shebang from file.coffee and file.js (fixes #18 and needed for CoffeeScript 2 upgrade)
• Change testing infrastructure to use Jest
• Transformation matrices:
  • geom.matrixMatrix: multiply two matrices
  • geom.matrixVector: multiple matrix times vector
  • geom.matrixInverse: invert matrix
  • geom.matrixRotate2D: 2D rotation matrix
  • geom.matrixTranslate: translation matrix
  • geom.matrixReflectAxis: reflection through coordinate axis
  • geom.matrixReflectLine: reflect through a line segment
    • Also nonmatrix forms: geom.reflectPoint and geom.reflectLine
• Add filter.transform for applying a transformation matrix
• Add filter.remove, filter.removeVertex, filter.removeEdge, filter.removeFace for removing a vertex/edge/face by index
• Add convert.flat_folded_geometry: convert flat foldable crease pattern into flat folded geometry
  • Available on command line via fold-convert --flat-fold, which modifies vertices_coords and changes creasePattern class to foldedForm class.
  • See new example: single diagonal fold (CP and folded)
• Add convert.edges_vertices_to_edges_faces_edges
• Fix boundary detection in convert.faces_vertices_to_edges