Adding isInsideByLocation to AbstractShapeMarker

 * Addresses issue #49 Marker needs .isInsideByLocation()
   function

 * Improves clarity of existing isInside() method on the
   interface

 * Includes test class
Updated todo.txt
Updated todo.txt
Merge branch 'master' into develop
Merged master into develop.
Merge branch 'develop' of github.com:tillnagel/unfolding into develop
Merge branch 'develop' of https://github.com/jonnyelliot/unfolding into jonnyelliot-develop
Added comments, and extended tests for AbstractShapeMarker.isInsideByLocation.
Clean up and added javadoc.
Added a multi-map example. Cleaned up more examples.
Updated compass and example.
Fixed tweening issue #5. (Based on @bgotink contribution.)
Updated examples with now functional tweening.

And added comments, javadoc, clean up, etc.
Cleaned up marker examples.
Fixed MapSnapshot (used in examples) to include markers.
Refined default MarkerManager mechanism. Added lots of javadoc.
Cleaned up more examples.

Deleted outdated info-marker examples (now under labeledmarker). Added
docs.
Updated release notes.
Added version info on Unfolding startup. Added javadoc to Processing dist.
Added and cleaned up Processing examples (for Processing dist).