Adde PMTK updates for 5 times/seconds
Adde PMTK updates for 5 times/seconds

For average projects, I think it's a good idea to include 200 millihertz updates in the source code.

By default, debs can choose 5 Hz, 1Hz and 100 mHz. I think average amateur tracing projects would fit best at 200 mHz than at 1Hz or 100mHz.
lolisa/2014-15,lolisa/2014-15,kaaLabs15/Adafruit-GPS-Library,huskyroboticsteam/2014-15,lolisa/2014-15,adafruit/Adafruit-GPS-Library,ulrichard/Adafruit-GPS-Library,huskyroboticsteam/2014-15,tonesandtones/Adafruit-GPS-Library,huskyroboticsteam/2014-15