Added application folder, with some small examples of how to use ePICURE.
Renamed bspline vector space internals.
Merge pull request #38 from luca-heltai/fix-bspline-bis

Renamed bspline vector space internals.
Fixed test legendre.
Until bugs have been fixed, arclength is no longer tested.
solving the bugs in arclength
running arclength again
Merge pull request #39 from nicola-giuliani/arc_bugs

Fixed arclength bugs.
Uncommented test-arclength and added docs to VectorSpace.
Vectorial test for least_square
Merge pull request #40 from ESeNonFossiIo/fix-least-square

Vectorial test for least_square