VERSION 0.6.6: fix to path discovery

New versions will be coming fast and furious for a bit as bugs get fixed and
testing is done in prep to the first binary release.

This version fixes a problem with WAN path discovery and a possible security
issue in PacketDecoder. (see previous comments)

version.h

@@ -41,6 +41,6 @@
 /**
  * Revision
  */
-#define ZEROTIER_ONE_VERSION_REVISION 5
+#define ZEROTIER_ONE_VERSION_REVISION 6
 
 #endif