OpenSCAD 2010.06
================

... add stuff here ...

OpenSCAD 2010.05
================

 o Added functions and statements
  - Added abs() function
  - Added exp(x), log(b, x), log(x) and ln(x) functions
  - Added minkowski() statement for 3d minkowski sums
 o Added 'include <filename>' and 'use <filename>' statements
  - Old implicit '<filename>' include statement is now obsolete
 o Some bugs fixed, maybe some new bugs added

OpenSCAD 2010.02
================

 o Added functions and statements
  - Added sqrt() function
  - Added round(), ceil() and floor() functions
  - Added lookup() function for linear interpolation in value list
  - Added projection(cut = true/false) statement
  - Added child() statement for accessing child nodes of module instances
  - Added mirror() statement
 o Improved DXF import code (more entities and some bugs fixed)
 o Added feature for dumping animation as PNG files
 o Added a preferences dialog
 o Now using CGAL's delaunay tesselator
 o Now using eigen2 for linear algebra
 o Reorganisation of the source tree
 o Some bugs fixed, maybe some new bugs added

OpenSCAD 2010.01
================

 o Added functions and statements
  - Added intersection_for()
  - Added str function
  - Added min and max function
  - Added color() statement
 o Added 2D Subsystem
  - New primitives: circle(), square() and polygon()
  - 2D->3D path: linear_extrude() and rotate_extrude()
  - Import of DXF to 2d subsystem: import_dxf()
  - Export of 2D data as DXF files
 o Some bugs fixed, maybe some new bugs added