version bump to v4.3.4

Author: lexming

src/build_tools/package.py

@@ -16,7 +16,7 @@
 @author: Alex Domingo (Vrije Universiteit Brussel)
 """
 
-VERSION = '4.3.3'
+VERSION = '4.3.4'
 
 AUTHOR = {
     'wp': 'Ward Poelmans',