Version 0.2.3 Released

New features:

• Smoke and dust emitters added to the wheels.
• Increased the spark emitters for 60% more sparks.

Yesterday I decided that I could probably finish up the smoke and dust effects by the end of the day.  And, so I did.  I had started work on them nearly a year ago but then they got shelved for whatever reason.  Not sure why it took me so long to come back around to it.  Maybe I wanted to build the other heavy performance stuff before committing to this many emitters.  Yesterday, I had planned to include them with another update in the queue but decided today this update was too fun to wait another couple days.