Added media broadcast

Quite dirty, hope I didn't break anything... x_x
Update Readme with info on the new code changes
Created two new example files to show how to either send messages once you know your password, or how to register to get your password.
Destroy all references to IMEI and MAC address. Hallelujah!
Remove old example files.
Rename and place new Broadcast features in order with rest of file.
Speeling mistokes.
Expanded the exampleFunctional.php demo and fixed some typos.