Added keys to keymap. F3 for extra selected item information and F to stop. Stop only works in espeak and flite so far. speech.
Changed F1 to repeat Window:Section:Item instead of just Item text.
F2 now speaks time and weather on the home screen.
F3 currently speaks TV show plots, episode plots, probably Movie plots, and song title,genre,duration.
Merge branch 'master' of https://github.com/ruuk/service.xbmc.tts

Conflicts:
	lib/backends/espeak.py
	lib/guitables.py