Bump up version to v0.1.5

Author: hebaishi

CHANGELOG.md

@@ -1,3 +1,6 @@
+## 0.1.5
+* Fix multithreading bugs
+
 ## 0.1.4
 * Second attempt to fix deployment error
 

include/version.hpp

@@ -1,5 +1,5 @@
 namespace VERSION {
     const int MAJOR = 0;
     const int MINOR = 1;
-    const int PATCH = 4;
+    const int PATCH = 5;
 }