Maze Center, ever...
Drag image and drop onto canvas: http://stackoverflow.com/questions/21713079/html5-canvas-drag-and-drop-item
Prevent events: http://www.ibm.com/developerworks/library/wa-games/
Git and ssh settings: https://help.github.com/articles/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent/ https://help.github.com/articles/adding-a-new-ssh-key-to-your-github-account/