Adding description how LASIF derives coordinates to
the documentation.
Making the image bigger and center in the docs.
Fixing Latex documentation output.
Converting text to paths.

Inkscape does not yet support embedding fonts into svg.
Testing the coordinate retrieval.

Also fixing associated small bugs.
Adding technical documenation information.
Finished get_and_rotate_synthetics_method().

Also added a test. Will only rotate the data if necessary.
Replaced the rotation code in the TwoWayIter.

It now uses the generic rotation function. Also lots of refactoring.
Adjusting test to new interface.
Refactored the two way iterator to its own file