[BZ 1075575] Update Cassandra to a version specially crafted to not print the superfluous warning about OpenJDK.
BZ 823965 Maintain existing agent-configuration.xml and log4j.xml files after agent auto-update.
The new configuration will be kept in agent-configuration.xml.new and log4j.xml.new
so that we at least provide the user with the updated defaults in case they want to manually merge them.
BZ_1080171 - defer adding of "WHERE" keyword until we know that it is needed.
[BZ 1070243] - (JON3-31) Add "Recent Events" portlet into JON
Dashboard

To make the filtering (based on resource name) working, I had to add also
 the new method to the EventCriteria class.

To sum it up, it is possible to filter by:
 * time ("from, to" or "last n mins/hours/days")
 * resource name - only for global Recent Alerts portlet; it accepts also a substring of a name
 * event source path - it accepts also a substring of a path
 * severity (almost the same as alert priority filtering)
 * result counts (5 is default)

Having that said, the performance shouldn't be an issue, because the
filters may be set to fetch only a few records.
Updated checks after comments from @metlos.
Merge pull request #17 from pilhuhn/bz1080171

BZ_1080171 - defer adding of "WHERE" keyword until we know that it is needed.
Merge remote-tracking branch 'origin/master' into feature/bz1069606-rebase-eap-63