Updated CHANGELOG.md for 0.3
Updated CHANGELOG.md for 0.3

jhftrifork/elasticsearch,mwl/elasticsearch,jrslv/elasticsearch,jrslv/elasticsearch,jrslv/elasticsearch,mwl/elasticsearch,mesos/elasticsearch,mwl/elasticsearch,jrslv/elasticsearch,mesos/elasticsearch,mwl/elasticsearch,jhftrifork/elasticsearch,mesos/elasticsearch,mesos/elasticsearch,jhftrifork/elasticsearch,jhftrifork/elasticsearch