VWR-20670 (SNOW-506) FIXED Protection on LLInstanceTracker base in...

VWR-20670 (SNOW-506) FIXED Protection on LLInstanceTracker base in LLEventTimer needs to be public for gcc >4.1

doc/contributions.txt

@@ -518,6 +518,7 @@ Robin Cornelius
 	SNOW-108
 	SNOW-204
 	SNOW-484
+	SNOW-506
 	VWR-2488
 	VWR-9557
 	VWR-11128

indra/llcommon/lleventtimer.h

@@ -33,7 +33,7 @@
 #include "lltimer.h"
 
 // class for scheduling a function to be called at a given frequency (approximate, inprecise)
-class LL_COMMON_API LLEventTimer : protected LLInstanceTracker<LLEventTimer>
+class LL_COMMON_API LLEventTimer : public LLInstanceTracker<LLEventTimer>
 {
 public:
 	LLEventTimer(F32 period);	// period is the amount of time between each call to tick() in seconds