Version 1.12

I have just uploaded version 1.12 to Google Play.  This adds logarithmic scaling to graphing.  It also adds an option to display graph reading points (such as intersections and roots) on graph.  Unfortunately asymptote readings aren't going to be added in the near future.  I soon realized after the last post that it was going to be more work to put them in then i originally thought.  It will also be easier to add them in after some other features are added.  For this reason, they won't be added in the near future, although I do hope to eventually add them.