* basic conrec integration
* basic conrec integration
* add molecule contouring
* update
* add an alpha channel to the color
* allow filling the grid
* cleanup
* remove some debugging output
* first pass at getting similarity maps to actually work
* updates
* add another test
explicitly set linewidth to 1
* some SVG cleanup
* add option for extra padding
* update expected test results
* efficiency
* at least something of a test
* forgot an import
* fix SWIG wrappers
* cleanups in response to review
* allow calling the functions without providing levels
* allow contouring numpy grids
* first steps towards flexible colour palettes
* add B&W palette and a test for it
* add python support;
this is, once again, not the best API due to the inability to auto-translate boost::tuples at this point
* more palette control from python
* rename some of the swig-wrapped types to make them more consistent
* handle palettes that do not have a default value
