changed theme to holo.light, still dark in pre-version 11
added 3 dip padding in Qtc calculator and removed background attribute that was making background black even in holo.light mode
left old version black, can consider implementing user selected theme vs just changing to Light theme
demonstrates how to change back to Holo (dark) in onCreate(), but needed setting for this.  Also need full styles for dark and light, and to make it work for API < 11
decision made only to change color scheme of v14 and greater.  Will leave old dark colors in Honeycomb and earlier
added version to About dialog
v11 styles are duplicated in v14 styles
added 3dip padding to warfarin calculator.  Removed black background to warfarin dosing screen.
fixed warfarin dosing table for holo.light, with new colors