Version 1.11.3

I just uploaded version 1.11.3 to Google Play.  This adds peak and trough readings to graph.  It also fixes some bugs.

There are are few more things that I wan't to add to graphing in the next update or two.

1. Asymptote reading.
2. Logarithmic scaling.
3. Display reading points on traces when the down arrow is hit to hide the reading tab.  Just like markers will draw their position when the readings tab is hidden, other readings will also show their location and reading on traces when the readings tab is hidden.