* more work on aarch64 ABI

* ABI: initial work on aarch64

* refactored existing platform ABI implementations into separate files
* added stub for aarch64

* bumped version to 0.17

* drop number sections in menu due to readthedocs theme incompatibility
* fix some missing docstrings
* add missing docs for some Scopes modules
* various wording and formatting docstring fixes

* grammar fix

* updated README.md

Added tag release-0.16 for changeset 70a613711fa0

* you guessed it: another readthedocs fix

* yet another readthedocs fix

* updated requirements for readthedocs

* yet another readthedocs fix attempt

* update to readthedocs config file

* updated mkdocs.yml in hopes of fixing a bug on readthedocs.io

* checked in readthedocs.yml configuration file

* updated requirements.txt once more

* updated requirements.txt

* checked in requirements.txt

* fix syntax highlighting
* disable highlightjs in favor of codehilite / pygments
* add pygments css
* convert scopeslexer into pygments pip-compatible module
* update scopeslexer to python3

* fix doc generation for functions decorated with @@ spice-quote