Ball can be heldBy a fielder.
Fix likely bug in buildCache() and document it (including contemplating future removal).
Add missing Full Circle font png.
Use PascalCase for all constants, explain in new README.
Split 'make check' into a separate command (less likely to shift your files out from under you than 'make lint')
Add __stub.ext.lua with quick explainer for why it's useful.
Consolidate hitBall() and throwBall() into one function.
Pull playerImage into its own "blipper" in utils.lua. This is definitely overkill, but we're learning with Lua, and it's fine, and it's very fine.
Also, patch up hit-detection logic!
Switch from D-Pad controlling hitMult to controlling player position.
This commit keeps a bunch of cruft, in case I messed something up.
The next commit will remove it.