WIP: Barchart colors.
Fixed barchart color problem.

Added another function to TraitDisplay.PaintSupplier that takes in an
explicit index (should range from 0 to num_variations-1. The exact color
is calculated (based on resetIndex) and the correct color is returned.

This method avoid updating the paintIndex and thus avoid cycling through
the colors.
Added mini trait block display panel in behavior block

When a trait is dropped in a behavior block, a mini 70x30 (default)
panel is added to the behavior block label (instead of the entire
trait block). The panel looks very much like a mini trait block.

Also, deprecated use of trait block (tBlockNew) inside behavior
block. Behavior block only needs the trait name from the trait
block, so only that string is saved and used where needed. A future
patch will remove all references to tBlockNew (even from comments).
Updated trait block display panel color

Updated color of trait block display panel in behavior block to the
same color as trait block.
Updating changes made last before merging with Species Editor version
Merge branch 'deltatick' of github.com:aditiwagh/NetLogo into deltatick