Made booleans start with a prefix, e.g. is_open
Added a leading underscore to two virtual functions
Added VIRTUAL comment above several virtual functions
Renamed accel -> acceleration in a function
Add quickstart guide and quickstart demo
Authored by Razoric and edited by Nathan and Johnny.
The purpose of the guide is simply to give an overview of what the
behaviors are there for, and a quick look at how to actually make use
of them in the basis of this toolkit, with some explanatory comments.
The actual user's manual will be built out of the API reference.
