Implement new tests for projection between CRS defined with OGC WKT.
Note : the projections using nadgrids are not working, because OGC WKT do not recognize nadgrids.
Clean up on logger and add a method to list all available codes from a registry
Add header, add a new test currently commented because of leac projection is not yet supported
Split the SpecialCoordinateTransformTest file into two files :
one contains tests using PRJ to define the CRS (PRJCoordinateTransformationTest),
the other contains tests using uncommon CRS not defined in registries.
Improve the PrjValueParameters class using PRJ and increment the version of the library.
Merge pull request #31 from ebocher/cts_loggertest

Cts loggertest + method to get the list of registry codes
Add Javadoc in PrjValueParameters class.
Merge pull request #30 from jparty/TestProjOGCWKT

Implement new tests for projection between CRS defined with OGC WKT.