Merge pull request #291 from v923z/openmv

adds option to override pre-processor constants

Author: v923z

code/ulab.c

@@ -37,7 +37,7 @@
 
 #include "user/user.h"
 
-#define ULAB_VERSION 2.1.2
+#define ULAB_VERSION 2.1.3
 #define xstr(s) str(s)
 #define str(s) #s
 #define ULAB_VERSION_STRING xstr(ULAB_VERSION) xstr(-) xstr(ULAB_MAX_DIMS) xstr(D)