Added plugins for testing purposes.
Added mongo connection details @ recording test.
Mongo details @ experiment tests.
Fixed experiment test Mongo connection.
Sending to kestrel/memcache is done now on a backround worker thread to allow OpenNI to do its shit

	modified:   acquisition/kinect/Makefile
	Just added a commented C symbol to allow debugging of the MemcacheWorker

	new file:   acquisition/kinect/MemcacheWorker.cpp
	new file:   acquisition/kinect/MemcacheWorker.h
	Class that implements the background worker thread

	modified:   acquisition/kinect/SceneDrawer.cpp
	Is now using the background worker to send data to kestrel. It throttles the message rate to 1 image and one skeleton per second

	modified:   acquisition/kinect/SceneDrawer.h
	Added Init method

	modified:   acquisition/kinect/main.cpp
	Calls SceneDrawerInit in main

	new file:   chef/jsons/ami-daq-dev.json
	new file:   services.amilab-daq-dev.txt
	Service definition files for a new configured server (HP Proliant ...)
Merge branch 'master' of git://github.com/ami-lab/AmI-Platform
Added Face Detection algorithm
Merge branch 'master' of github.com:ami-lab/AmI-Platform into f/#141-display-subject-trace
Use http client from httplib package in api_test. #141