Add visualization for value function found by RL methods in Maze

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Color coded or object scale coded RL value function would be nice to see in 
Maze mod.

Original issue reported on code.google.com by ikarpov on 4 Oct 2011 at 3:48

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Original comment by ikarpov on 11 Oct 2011 at 7:08

• Changed state: Started
• Added labels: Priority-High
• Removed labels: Priority-Medium

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This is in trunk

Original comment by ikarpov on 1 Nov 2011 at 1:47

• Changed state: Fixed