bump version to 0.11.2

Author: rogerwang

src/nw_version.h

@@ -24,7 +24,7 @@
 #define NW_MAJOR_VERSION 0
 #define NW_MINOR_VERSION 11
 #define NW_PATCH_VERSION 2
-#define NW_VERSION_IS_RELEASE 0
+#define NW_VERSION_IS_RELEASE 1
 
 #ifndef NW_STRINGIFY
 #define NW_STRINGIFY(n) NW_STRINGIFY_HELPER(n)