Updated accessor objects using new structure.
Improved efficiency of some accessors. Added a few hyphens.
Updated apps to use new accessors.
Improved efficiency of hidden data checking.
Improved efficiency of panning and zooming by removing redundant sorts, storing repeatedly computed values, and making a small structure modification.
Removed commented code.
Faster cloning method for axes.
Changed 9000 to Infinity so all bad values are pushed to the far right.
Improved element sorting algorithm.