Added additional logging regarding task execution duration to track long executing tasks
Merge branch 'master' of github.com:hazelcast/hazelcast-stabilizer
Improved logging to figure out how long it takes to process a command
Fixed problem setting the correct start time on a command
Improved logging of timeout duration
Performance monitor is started when the test case is starting
Resolved timeout problem
HdrHistogram written by Gil Tene can now be used to measure latency instead of our home-grown LinearHistogram.

When a type of a probe is set to "hdr" in a test.property file then a HdrHistogram-based probe will be injected.

Example:
$ cat test.properties
class=com.hazelcast.stabilizer.tests.map.StringMapTest
threadCount=1
keyLocality=remote
probe-putLatency=latency
probe-getLatency=hdr

In this example the getLatency probe will use the HdrHistogram probe. putLatency will use the original LinearHistogram probe.
In the future we can decide to remove the LinearHistogram altogether and make "latency" to be a synonymous to "hdr"

Serialization to XML is still a bit crude, based on base64 encoded internal state of HdrHistogram, however Visualized is able to read & visualize the data.
Fixed typos and newlines in docs.
Replaced ${parent.version} with ${project.parent.version} to get rid of maven warning.
Added support to customize stabilizer home directory.
Added support for Java 8 options in provisioner bash script.
Merge pull request #405 from Donnerbart/master

Small changes and fixes
Added support for client
Merge branch 'master' of github.com:hazelcast/hazelcast-stabilizer
Added serialization configuration for the back pressure request + pulled out inner classes
Added serialization config for SomeRequet to the client
Making use of PortableFactory instead of PortableHook
Fixed compilation issue
Fixed classcast problem