- Changed the look of the menu

- Added Simple mode, and Advanced mode. Simple mode is the default, to enter the advanced mode, press Shift and A at the same time. The simple mode works better with mobile but the advanced mode is more complex (and good).

- Added the option to view details about a person while the simulation is running. (Only works in advanced mode) if you right-click on a person, it will show you data about him in a window (his state, how many people he infected, his age, etc...). 

- Added the option to zoom and move the camera. (Only works in advanced mode) To move the camera, click the left mouse button and move the mouse (feels like dragging). To zoom, scroll with your mouse wheel. To reset the camera zoom and position, press R.

- Fixed a bug that caused a loud sound to be played when starting the software.

- Fixed a bug that prevented WebGL builds to save data properly.