initial beginning of plotting library
drawBarChart now takes arguments
should be finished but there is a null pointer
Merge branch 'master' of https://github.com/simonhmadsen/PP2014-Wifipositioning

Conflicts:
	example/ModelPositionEstimater.java
Merge branch 'master' of https://github.com/simonhmadsen/PP2014-Wifipositioning

Conflicts:
	example/ModelPositionEstimater.java
Merge branch 'master' of https://github.com/simonhmadsen/PP2014-Wifipositioning

Conflicts:
	example/ModelPositionEstimater.java
Fix af empirical method og 1/2 part 2 ass. 3
Merge remote-tracking branch 'origin/part2' into part2

Conflicts:
	example/Part2.java
	example/PositionEstimater.java
Merge pull request #1 from simonhmadsen/part2

Part2