Allow the usage of `bitmaptools.blit()`, which will be available in CircuitPython 9.0. While the change here is backward-compatible, signaling the use of new API additions through a major revision bump seems appropriate. Thanks FoamyGuy!
To use in CircuitPython, simply install the [Adafruit CircuitPython Bundle](https://circuitpython.org/libraries).
To use in CPython, `pip3 install adafruit-circuitpython-Display-Text`.
Read the [docs](http://circuitpython.readthedocs.io/projects/Display-Text/en/latest/) for info on how to use it.