update CHANGELOG and bump version to 6.10.1
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-__version__ = (6, 10, 0)
+__version__ = (6, 10, 1)
VERSION = ".".join(map(str, __version__))
