Use the correct Math method to calculate a hypotenuse.
Added method to calculate the 3D distance between two points
Added unit test for the new 3D distance method
Merge pull request #943 from arthurbenemann/3Ddistance

3D distance
Fix eclipse build

When building with the eclipse the app would be creeated as desired, but would crash when trying to open in a real device. This fix this issue, but it makes CORE project not reachable via the eclipse navigation tools anymore as was done in #939.
Merge pull request #945 from arthurbenemann/eclipseBuildFix

Fix eclipse build
Make eclipse 'Open Declaration' point to the Core source instead of compiled jar

Fix thanks to http://stackoverflow.com/a/12891499/2577890
Merge pull request #946 from arthurbenemann/eclipseNavigation

Make eclipse 'Open Declaration' point to the Core source
Moved the ROI class
Update references broken by previus commit.
Merge pull request #947 from arthurbenemann/refactorROIclass

Refactor ROI class
Simplifying the follow-modes.

Development of the modes will be made on a separate branch.
Simplifying the ROI class.
Merge pull request #948 from arthurbenemann/follow-simplify

Follow Simplification