milestone/mmnormalize: support configurable cookies and target containers

code looks ok and compiles, but has NOT yet undergone real testing
tcpflood: add json format support

this is required for mmjsonparse testing
testbench: add tests for mmjsonparse
mmjsonparse: support for different cookies and target containers complete

This fixes the case where the target container was selected wrongly.
bugfix: mmjsonparse did not build with json-c < 0.10

This was a regression introduced some time in the past in order to
support API changes in json-c. Now we check for the version and use
proper code.
maintain ChangeLog