Clean up suppressedKeys

* No need for it to be an attribute.
* Remove misspelling.
Rename renderer.viewSize to renderer._viewSize
Rename renderer.viewCenterPos to renderer._viewCenterPos
Rename renderer.backgroundColor to renderer._backgroundColor
Rename runner.runs to runner._runs
Rename collider.collideRecords to _collideRecords
Minify
v. 0.2.5