Updated Changelog for v0.6.

Author: haesbaert

CHANGES.md

@@ -1,3 +1,10 @@
+## 0.6 (2017-04-01)
+
+* Dhcp_wire.buf_of_pkt now correctly rejects empty options.
+* Dhcp_wire.options_of_buf now enforces minimun length on all cases.
+* Fixed option code for Bcmcs_controller_ipv4_addr.
+* **CRITICAL** Fixed a bug where dhcp_flags was read from the wrong offset.
+
 ## 0.5 (2017-03-14)
 
 * Topkg support added