Changelog.txt updated for 3.5 package.
Changelog.txt updated for 3.5 package.

tkountis/hazelcast,dbrimley/hazelcast,juanavelez/hazelcast,dsukhoroslov/hazelcast,mdogan/hazelcast,lmjacksoniii/hazelcast,mdogan/hazelcast,mesutcelik/hazelcast,Donnerbart/hazelcast,dsukhoroslov/hazelcast,emre-aydin/hazelcast,dbrimley/hazelcast,tombujok/hazelcast,tombujok/hazelcast,mesutcelik/hazelcast,lmjacksoniii/hazelcast,Donnerbart/hazelcast,tkountis/hazelcast,emrahkocaman/hazelcast,tufangorel/hazelcast,tufangorel/hazelcast,dbrimley/hazelcast,emre-aydin/hazelcast,juanavelez/hazelcast,Donnerbart/hazelcast,mdogan/hazelcast,tufangorel/hazelcast,emrahkocaman/hazelcast,tkountis/hazelcast,emre-aydin/hazelcast,mesutcelik/hazelcast