* add a shared memory port allocator to allow multiple processes to share a single allocation pool
* remove dangerous reset function on port allocator
* set forkCount = 2 in node integration test
* only allow one build of a cordapp at any given time for Driver tests
* make all portallocation requests use same starting point
* globally set forks to 6
* tweak forking parameters to allow parallel builds
* tweak unit test parallelism
* 2 workers for integrationTest
* some more tweaks for parallel builds
* some more tweaks for parallel builds
* seems that 49K is not the start of ephemeral ports on all kernels
* tweak parallel settings
* try fix RPC shutdown test in parallel env
* add some logging for RPC shutdown test
* added some logging around PortAllocation tests - try figure out where they are getting stuck
* added some logging around PortAllocation tests - try figure out where they are getting stuck
* fix api-scanner tests
* minimize api changes
* revert to complying with existing API
* add the AtomicInteger for api compatibility reasons
* make sizing script executable
* address review comments pt1
* address review comments pt2
* fix compile errors after review comments
* return to using home dir as temp dir seemed to interact badly with gradle
