[FIX](CCC AxisPanel) Improved extensibility.
[FEAT][WIP](CCC Color Map) Added initial implementation of 'Map' option to discrete color scales; allows fixating the color for given domain values; not documented yet
[CHG](CCC def.mixin) Added more options to control how to protect the mixed in objects
Merge branch 'master' of https://github.com/webdetails/cdf