Added .idea/ant.xml to .gitignore
Replaced unnecessary myBreedBlock in TraitPreview with myBreedName

BreedBlock myBreedBlock was only being used to obtain plural(). The entire
breedblock wasn't necessary. Replaced with a string myBreedName.
Renamed getBreedTypes() to getBreedNames() in modelBackgroundInfo

rAlso, Renamed getTraitTypes() to getTraitNames() in modelBackgroundInfo.
All usages were also updated.
Added comment in SpeciesInspector.java. This class should really be removed.
Updated Activity1_6.xml to make average block work
Fixed buglist #45 -- pen not made error

The getYLabel funtion in quantitiy block was referencing tBlock even when
a traitblock is not applicable. This was causing a null pointer exception
and the plot pen for the NetLogo plot was not getting created.

Now there is a check for tBlock. Also, if a PrettyInput called "breed-type"
exists then the corresponding breed name is attached to the yLabel.
Updated label-color in the NetLogo world

The NetLogo world/patch background is not white, so the labels for trait/variations
were not visible. Changed the label color to black so it is now visible.
No spaces allowed in AgentInput in BehavirBlock
Making average (quantity) block work with trait block

Now a trait block can be dropped in the "average" quantity block.
The plot will the show the average value of the trait for the
corresponding breed.
WIP: SpeciesEditorPanel

* Seems to be working (on a basic level) so far, i.e. breed block gets created,
  trait blocks are created, traits are applied to breed block, appropriate
  behavior blocks also get updated an applicable trait is defined.
* Added shape button. The shape now gets assigned to the breed block.
* Added color chooser combobox. Combobox displays selected color. Selected color
  also gets applied to breed block.
* setupNumberand maxNumber are also passed to/set in breed block, and the NetLogo
  code tab shows the correct setup and max numbers.
* Updated shape button color with the selected color. Added an itemchange listener
  that updates the color of the shape icon.
* Added support for multiple breeds. Also added error checking if an already
  existing breed is selected in species editor.
Merge branch 'salil_dtoffice_merge' into deltatick