[c] IKCONSTRAINT_ENTRIES was incorrect. Closes #1197.

spine-c/spine-c/include/spine/Animation.h

@@ -432,7 +432,7 @@ typedef spDeformTimeline DeformTimeline;
 
 /**/
 
-static const int IKCONSTRAINT_ENTRIES = 4;
+static const int IKCONSTRAINT_ENTRIES = 5;
 
 typedef struct spIkConstraintTimeline {
 	spCurveTimeline super;