added printing detected sensors in 'status' in cli

took out leftovers of old dynamic mixer binary protocol - now cli sets it.
added some mpu6050 DMP stuff - all disabled by default, only for testing stuff. ignore it.

git-svn-id: https://afrodevices.googlecode.com/svn/trunk/baseflight@128 7c89a4a9-59b9-e629-4cfe-3a2d53b20e61

src/config.c

@@ -159,6 +159,11 @@ void sensorsClear(uint32_t mask)
     enabledSensors &= ~(mask);
 }
 
+uint32_t sensorsMask(void)
+{
+    return enabledSensors;
+}
+
 bool feature(uint32_t mask)
 {
     return cfg.enabledFeatures & mask;