Merge pull request #148 from nkubala/v0.5.2

cut version v0.5.2

Author: nkubala

Makefile

@@ -15,7 +15,7 @@
 # Bump these on release
 VERSION_MAJOR ?= 0
 VERSION_MINOR ?= 5
-VERSION_BUILD ?= 1
+VERSION_BUILD ?= 2
 
 VERSION ?= v$(VERSION_MAJOR).$(VERSION_MINOR).$(VERSION_BUILD)