Extended log and alternative navigation.

These changes add four features. The first is an alternative form of character navigation, a joystick. Long click on the center to reposition the button. You should probably make a new graphic that fits better with the rest of the interface.

The second is an extended log. Clicking on the log text will open a scrollable window to view all logs for the current level.

The third adds a button to the toolbar that travels to the closest unvisited area that the hero knows how to get to.

The fourth is another alternative navigation 'continuous goto'. Clicking and holding will move the hero toward that direction (not necessarily a valid cell), and once activated dragging will change that direction. Basically it plays fallow the finger.
It is the same for if and else.