JCS: Remove some comments and unused code; add is_first to fist render to support e.g. autofocus
JCS: Allow IE to work with missing pushState
JCS: Allow IE to work with missing pushState
JCS: Use div vs. span on debug page/parts hover indicator 30x30 UI markers
JCS: Clean-up (remove settings outside of Class definitions where possible) to support combined files in deploy
JCS: Clean-up (comments, log function)