Merge pull request #5 from darekper/master

Include voice_keyer directory & script to the project
improved Fx keys processing
voice_keyer script is installing with rest of the app
voice_keyer.sh script doesn't need to have executable right set
"transaction already active" exception fixed
fixed "Operation cannot be performed on an active dataset" when processing Fldigi QSO
Merge pull request #6 from darekper/master

added ability to recognise RTTY mode from freq. made the mode visible on bandmap
sh changed to bash to run voice_keyer