allow heartbeatTimestamp header (ICE-9891)

git-svn-id: http://anonsvn.icesoft.org/repo/icepush/trunk/icepush@40193 8668f098-c06c-11db-ba21-f49e70c34f74
PUSH-307 Modified bridge to send with any request the configured acces_token and realm.

git-svn-id: http://anonsvn.icesoft.org/repo/icepush/trunk/icepush@40275 8668f098-c06c-11db-ba21-f49e70c34f74
Fixed JIRA PUSH-305 : Investigate Hazelcast and its potential usage in EPS

git-svn-id: http://anonsvn.icesoft.org/repo/icepush/trunk/icepush@40314 8668f098-c06c-11db-ba21-f49e70c34f74