Scale game objects to screen size.
Persist scale changes of game objects properly across lifecycle.
Fragments play nice on Nexus 4 emulator.
added noise to target's movement to increase difficulty
adjust noise width
Give up on persisting Option submenu state. Fragments do their own thing now.
Merge branch 'randomTargetMovement' into rc-improve
Noisy target movement scaled down, responds to pause. Update Help screen.
Fix layout of Calibration screen on low-res devices.
Add JavaDoc. Release 1.0