* PR57:
  remove the license from tests
  1) move license to Project's root 2) add a missing sentence from 2-clause license 3-clause license ("BSD License 2.0", "Revised BSD License", "New BSD License", or "Modified BSD License"): [(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.]

# Conflicts:
#	src/isodate/__init__.py
#	src/isodate/duration.py
#	src/isodate/isodates.py
#	src/isodate/isodatetime.py
#	src/isodate/isoduration.py
#	src/isodate/isoerror.py
#	src/isodate/isotime.py
#	src/isodate/isotzinfo.py
#	src/isodate/tests/__init__.py
#	src/isodate/tests/test_date.py
#	src/isodate/tests/test_datetime.py
#	src/isodate/tests/test_duration.py
#	src/isodate/tests/test_strf.py
#	src/isodate/tests/test_time.py

2) add a missing sentence from 2-clause license 3-clause license ("BSD License 2.0", "Revised BSD License", "New BSD License", or "Modified BSD License"): [(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.]