Renamed ganetiviz.js to render-graph.js
Changed namespace of particle system, Renderer to global moving them out of functions
Removed that.resize in Renderer, due to its redundancy
Instance highlighted on hovering, albeit permanent
Secondary node highlighting when hovering on instance, albeit permanent
Secondary Node highlighting feature improved, made reversible
Modified some variable names and created GanetiNodes array object
Removed some redundant code in render-graph.js