updated changelog for v0.0.3
+2016-06-19: v0.0.3
+ Initial support for Mesos v1 HTTP API
+ Mesos 1.1.1 protos (v1 API only)
+ Shuffled packaging to accommodate both Mesos v0 and v1 APIs
+
2015-09-20: v0.0.2
Fixed a bunch of race conditions and most test flakes (#185, #189)
Updated Protobufs to Mesos 0.24.0 (#192)
