Merge branch 'release-1.0.1' into develop

Conflicts:
	C/src/xplaneConnect.c
	MATLAB/+XPlaneConnect/XPlaneConnect.jar
	MATLAB/+XPlaneConnect/sendDREF.m
	xpcPlugin/XPlaneConnect/mac.xpl

MATLAB/+XPlaneConnect/closeUDP.m

@@ -22,6 +22,10 @@ socket.close;
 
 %% Track open clients
 global clients;
-%TODO: Remove stale clients
+for i = 1:length(clients)
+    if socket == clients(i)
+        clients = [clients(1:i-1) clients(i+1:length(clients))];
+    end
+end
 
 end

MATLAB/+XPlaneConnect/sendDREF.m

@@ -15,4 +15,5 @@ if ~exist('socket', 'var')
     sendDREFs(dref, value)
 else
     sendDREFs(dref, value, socket)
-end
+end
+socket.sendDREF(dref, value);