Entry-exit evaluation using ground truth

Does not work yet...
Entry-exit evaluation
Entry-exit evaluation

Some updates
Working entry-exit evaluation
Updated entry-exit evaluation
Unbroke everithing with GAFFA
Merge remote-tracking branch 'origin/master' into 17--Gt-evaluation
This might be work great. <Knocks on wood like DBL_MAX times>.

Conflicts:
	conf/dense_conf.yml
Conffile
Message in EntryExitEvaluator.hpp
Merge remote-tracking branch 'origin/master' into 17--Gt-evaluation

merge

Conflicts:
	conf/dense_conf.yml
	src/DenseKitchen.cpp
still writing to rawimage..
updater added accuracy, not printed though
conflict
Works
Merge branch 'master' into 17--Gt-evaluation

Conflicts:
	src/Evaluation/EntryExitEvaluator.cpp
Fixed broken image link in readme.md
Sprint review collection finished
Started working on cleaning up kinect for mac code
Merge branch 'master' of github.com:GroupDenseKitchen/KitchenOccupation
Improved scaling of depth image for kinect-mac and some small code cleanup.