Added an example to navigate the menu over serial
Added example that use a LCD (16x2) display, this example is controled over serial
corrected some typos on LCDNav and SerialNav examoples
Added more advanced example that use a LCD (16x2) display, this example is controled over serial. This exampole shows a way to display variables, set a variable, togle a led, and read an analog value
Merge branch 'master' of https://github.com/niesteszeck/menusystem into example-serial-nav
Update paths and filenames to match existing
Merge branch 'example-serial-nav'
Update README and add AUTHORS file