Changes to be committed:
	modified:   lib/ruby-processing/app.rb
	modified:   lib/ruby-processing/helper_methods.rb
	modified:   samples/processing_app/library/vecmath/arcball/arcball_box.rb
	modified:   samples/processing_app/library/vecmath/arcball/arcball_radius.rb
	modified:   samples/processing_app/library/vecmath/arcball/arcball_shape.rb
	modified:   samples/processing_app/library/vecmath/vec2d/multiple_particle_systems.rb
	modified:   samples/processing_app/library/vecmath/vec3d/retained_menger.rb
	modified:   samples/processing_app/topics/shaders/glsl_heightmap_noise.rb
avoid using eval, prefer ruby to processing convenience functions
Back to the future fix examples but don't deprecate yet
Merge pull request #95 from jashkenas/noeval

Noeval