abstracts storing the drawing surface
adds lightbox functionality to touch mixin
fixes potential division by 0 error
adds a 'close' button for the lightbox
adds close button to lightbox implementation
inital migration of lightbox to jQuery plugin
refactors non multigraph specific code out of multigraph.done functions
moves multigraph specific handlers into callback functions
stores lightbox data in local variables
removes unnecessary jQuery wrappers
lightbox can now make an item fullscreen or preserve its size
changes lightbox callbacks to use pre/post callbacks
removes unnecessary jQuery wrappers
adds custom touch event handling to lightbox. reorganizes code.
adds flag to enable default event handling in the lightbox
moves pointer to the original div to the data object
removes multigraph callbacks from implementation of the lightbox
adds options to multigraph's call to lightbox