Update PX4 Firmware metadata Tue Nov 20 13:23:52 UTC 2018

src/FirmwarePlugin/PX4/PX4ParameterFactMetaData.xml

@@ -4450,6 +4450,13 @@ the vehicle will accelerate at this rate until the normal position control speed
         <value code="3">Jerk-limited trajectory</value>
       </values>
     </parameter>
+    <parameter default="-1.0" name="MPC_COL_PREV_D" type="FLOAT">
+      <short_desc>Minimum distance the vehicle should keep to all obstacles</short_desc>
+      <long_desc>Only used in Position mode. Collision avoidace is disable by setting this parameter to a negative value</long_desc>
+      <min>-1</min>
+      <max>15</max>
+      <unit>meters</unit>
+    </parameter>
     <parameter default="3.0" name="MPC_CRUISE_90" type="FLOAT">
       <short_desc>Cruise speed when angle prev-current/current-next setpoint
 is 90 degrees. It should be lower than MPC_XY_CRUISE</short_desc>