Delete unused files.
(ie all the org.cts.op.projection.grids package + FrenchGeocentricNTF2RGF)
Implement a new method of creation of NTv2GridShiftTransformation,
so that the class from package org.cts.grid are used only by the class NTv2GridShiftTransformation,
which make the code more understandable.
Add trim in prj parser to prevent errors from unexpected leading and trailing whitespace.
Merge pull request #37 from jparty/refactorCode

Refactor code
Merge pull request #38 from jparty/fixParser

Add trim in prj parser