TestApp now has multiple executors for load generation
Fixes issue #1056
Merge pull request #1095 from pveentjer/fix/3.x/1056

Fixes issue #1056
Merge pull request #1090 from pveentjer/improvement/3.x/testapp-executorpoolsize

TestApp now has multiple executors for load generation
Initial work on locating the portable bytearray bug
Added missing import statements to getting started documentation
Merge pull request #1097 from pveentjer/improvement/3.x/gettingstarted-documentation

Added missing import statements to getting started documentation
Fix #1096

Fixes an issue with portable serialization resulting in different byte arrays. The cause
was a bytearray which wasn't cleaned correctly.
Merge branch 'fix/3.x/portable-bytearray' of github.com:pveentjer/hazelcast
Merged pull #1099. Added some complex portables to test.