Remove test files
Remove unused LocalLayer
Refactor AbstractLayer
Refactor AbstractDrawing
Rename layer to region
Renamed variables
Finished renaming layer to region
Refactor AbstractVisualization
Refactor initGUI
Refactor initCamera
Refactor Snapshot
Merge pull request #45 from chetan51/refactor

Major refactor to support other kinds of visualizations
Updated for new server
Fix missing data bug
Added EncoderRegion, NetworkEncoderRegion, and EncoderVisualization
Loading correct region class
Refactor loading logic from CellVisualization into AbstractVisualization
Refactored EncoderVisualization
Better camera for encoder visualization