Cap resource utilization of scanning sub-processes

Problem: Scanning subprocesses do not stop (FE-2784) and consume massive amounts of CPU and storage IOPS.

Hopefully the following is helpful:

Assign processes to JobObjects under Windows to:

http://msdn.microsoft.com/en-us/library/ms684161%28VS.85%29.aspx

Setting ulimits on *nix:

https://www.ibm.com/developerworks/mydeveloperworks/blogs/troubleshootingjava/entry/ulimit_and_xmx

Some ancient Windows and *nix JNI code here:

http://www.javaworld.com/javaworld/javaqa/2002-11/01-qa-1108-cpu.html