First!
Cleaning up the Makefile
Updating media
Moving `examples` to `tests`
Use `GLfloat` instead of `double`
Adding `Text`
Adding `Sound`
Clear frame at beginning of update loop

- Need to be able to draw during all events, e.g. `on_key` and
`key_down`
Code clean up :lipstick:
Cleaning up errors
NULL is acceptable for `on_key` and `key_down`
Add `render` function
Check for errors loading fonts
Adding Bitstream Vera font for testing
Update testcard to use Bitstream Vera included
Add Linux GL flags to config
Use C99 mode to suppress warnings
Send people to the preview
Adding `VERSION` file

Used for checking remote version on update
Adding the `simple2d` command-line utility

This replaces `simple2d-config.sh`