Copter: 3.4.2-rc2 release notes

ArduCopter/ReleaseNotes.txt

@@ -1,6 +1,6 @@
 APM:Copter Release Notes:
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-Copter 3.4.2-rc1 07-Nov-2016
+Copter 3.4.2-rc1/rc2 07-Nov-2016
 Changes from 3.4.1
 1) Minor Improvements:
     a) ACRO_Y_EXPO applies to all flight modes (but is defaulted to zero)
@@ -8,9 +8,10 @@ Changes from 3.4.1
     c) AltHold filter applied to P (was previously only for D)
     d) arming check for compass health (was previously only a pre-arm check)
 2) Bug Fixes:
-    a) LeddarOne driver busy-wait fix 
-    b) SBF GPS altitude fix
-    c) MAV GPS uses existing configured baud rate instead of auto detecting
+    a) compass calibration (onboard) fix to return completion status
+    b) LeddarOne driver busy-wait fix 
+    c) SBF GPS altitude fix
+    d) MAV GPS uses existing configured baud rate instead of auto detecting 
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 Copter 3.4.1 01-Nov-2016
 Changes from 3.4.0