.getRGB[A] basic tests added.
.getHSV / .getHSL added.
'build' target made phony.
Color#getHSB (alias for #getHSL) added.
More readable .getHS(L|V) implementations.
Missing tests added.
Minor fixes.
Missing doc added, we still need some examples for .getHSV.
new Color#getHS* added to the Changelog.
More tests.
HSV support fixed.