Base module for Hazelcast 3.x and configurable Java kill switch

Added a base module for Hazelcast 3.x and used it for alle 3.x plugins.
Added a configurable Java kill switch (killall or let IDEA live, use sudo or not).
Ignored local-benchmark.xml and provided a sample file instead.
Updated local-settings-example with new options.
Should be queried once (maybe for each bucket name) to determine if transactions are supported (from radargun source):

Specifies if the requests should be explicitely wrapped in transactions. By default the cachewrapper is queried whether it does support the transactions, if it does, transactions are used, otherwise these are not.