committed (untested) GPS support by sbaron;

fix for channel map cli stuff by simonk.
reindented some code, so changes are large.

git-svn-id: https://afrodevices.googlecode.com/svn/trunk/baseflight@127 7c89a4a9-59b9-e629-4cfe-3a2d53b20e61

src/board.h

@@ -29,6 +29,7 @@ typedef enum {
     FEATURE_CAMTRIG = 1 << 6,
     FEATURE_GYRO_SMOOTHING = 1 << 7,
     FEATURE_LED_RING = 1 << 8,
+    FEATURE_GPS = 1 << 9,
 } AvailableFeatures;
 
 typedef void (* sensorInitFuncPtr)(void);