CHANGELOG.md in signer-1.5.0 vs CHANGELOG.md in signer-1.5.1

@@ -1,4 +1,8 @@
+## 1.5.1 (2017-03-23)
+
+- Allow to set up custom xmldsig namespace prefix for Signature node (#14, @Envek)
+
 ## 1.5.0 (2017-01-23)
 
 - Add posibility to disable noblanks method in Signer initialization (#16, @bpietraga)
 - Minimum ruby version is now 2.1