G0HYN Learn Morse

Jan 8, 2018

- Attempt to fix crashes under Android 4.4 - menu.getItem for the 'Koch' checking changed to menu.findItem.
- In Learn/Listen - Layout background colours changed to match those of RX-Morse i.e. green for play, and blue for pause.
- Add user changeable font size (as per RX-Morse).
- Replaced listen files P4 with Fortune Cookie sayings, and P5 with Confucius quotes.
- Morse.txt no longer needs a ':' at the start of each line (as long as there is a new line or carriage return at the ends)