Removed caching. Switched to lerp for color mapping.
Unified color mapping code.
minc2volume-viewer script now exports 2 functions when require()'d
Clamp, flip now properties of color_map. Closes #178.
Improved error handling
bump minc2volume-viewer.js version
Merge pull request #182 from PaulMougel/minc2volume-viewer-export-functions

Minc2volume viewer export functions
Expose brightness and contrast to API. Closes #183.
Merge pull request #184 from tsherif/color-mapping

Color mapping. Closes #169.