#69: adding a way to color individual bars (rather than the whole series as it is done right now).  Leaving the previous behavior as the default.
Horizontal barcan nopw stack with both positive and negative, verticaly aligned values with center of bar
Positive and negative stacked horizontal withunique colors per group
Fixed issue with custom group color and disabling series on the horiontal bar chart
Added barColor fucntionality to multibar to imitate what I did for multibarHorizontal
Fixed max and min calculations for multibar stacked
Made tooltip look a little sexier
Made tooltip look a little sexier
Made tooltip look a little sexier
merge from upstream