added graph.eachNode() and graph.eachEdge()
added graph.eachNode() and graph.eachEdge()

mkarlovc/qminer,blazs/qminer,blazs/qminer,ErikNovak/QVisual,blazs/qminer,mkarlovc/qminer,blazs/qminer,blazs/qminer,mkarlovc/qminer,mkarlovc/qminer,ErikNovak/edsa-server,ErikNovak/data-visualization,ErikNovak/edsa-server,blazs/qminer,mkarlovc/qminer,mkarlovc/qminer,ErikNovak/QVisual,ErikNovak/data-visualization