Added alerts via TextToSpeech,also have code to play sounds from files in the RAW resource, it works, but is commented out, went with TTS.
Added a second seekbar for adjusting S as well as the original V adjustment (as in HSV colour)
Merge branch 'master' of https://github.com/anthonykeane/SpeedSignFinder

Conflicts:
	AndroidManifest.xml
	res/layout/threshold_dialog.xml