AC 2.0.33 Beta

Slighted tuned down D term in Loiter PIDs after testing, tuned up P slightly
fixed alt hold bug cause when gaining 3D lock in alt hold.
Mavlink now reports correct throttle scaling value in mavlink


git-svn-id: https://arducopter.googlecode.com/svn/trunk@2746 f9c3cf11-9bcb-44bc-f272-b75c42450872

ArduCopterMega/config.h

@@ -473,7 +473,7 @@
 # define XTRACK_GAIN          2 // deg/m
 #endif
 #ifndef XTRACK_ENTRY_ANGLE
-# define XTRACK_ENTRY_ANGLE   8 // deg
+# define XTRACK_ENTRY_ANGLE   20 // deg
 #endif