Fixed JIRA PUSH-246 : An NPE occurs during failover/restart when JMS messages are being send

git-svn-id: http://anonsvn.icesoft.org/repo/icepush/trunk/icepush@35844 1de00972-ac04-4911-a46b-06793c8d78d9
PUSH-230 Introduced mechanism for expiring PushIds on the client to avoid ID acumulation when they are not properly deregistered. The bridge now keeps track of the last time a pushID notification was received, if after a certain interval (configured through org.icepush.pushIdTimeout context parameter)  no more notifications were received for this ID then it is discarded.

git-svn-id: http://anonsvn.icesoft.org/repo/icepush/trunk/icepush@35878 1de00972-ac04-4911-a46b-06793c8d78d9
PUSH-230 Revert previous commit.

git-svn-id: http://anonsvn.icesoft.org/repo/icepush/trunk/icepush@35884 1de00972-ac04-4911-a46b-06793c8d78d9
PUSH-230 Make sure no duplicates will show up in the list of pushIds saved in 'ice.pushids' cookie.

git-svn-id: http://anonsvn.icesoft.org/repo/icepush/trunk/icepush@35885 1de00972-ac04-4911-a46b-06793c8d78d9