Updated copyright date.
terminal.js:  Added GateOne.Terminal.clearScrollback(term); it just empties the scrollback buffer in memory, localStorage, and in the DOM all at once.  This should resolve issue #241 (https://github.com/liftoff/GateOne/issues/241).
terminal.js:  Added GateOne.Terminal.clearScreen(term); it does exactly what you'd think it does.  This change is also related to issue #241.
terminal.py:  Fixed a bug where the CALLBACK_RESET callbacks were not getting called by Terminal.reset().
terminal/__init__.py:  Modified to use relative import (i.e. '.terminal') since it makes the most sense (terminal.py is in the same directory).
termio/__init__.py:  Modified to use relative import.  Just like above.
gopam.py:  Fixed some issues with Python 3 support.
setup.py:  Now removes termio.pyc and terminal.pyc in addition to the .py files.
setup.py:  Now removes the old location of onoff.py and onoff.pyc