v5 changelog

Having lots of eyeballs on custom puzzles and advanced puzzles lately, which has let me a lot of balancing, bugfixes and miscellaneous additions:

* Chapter 0~7: Moved many Advanced puzzles' position to better reflect their difficulty. (Braid [VAR1] later, Orbital Drop sooner, Heaven sooner, Car Engine later, Ricket Engine sooner, Quantum Entanglement sooner, Inevitable Demise sooner, LEVEL_NOT_FOUND [VAR1] and [VAR2] swapped, Double Glazed [VAR1] sooner)

* Chapter 2: Every Standard puzzle got or changed its Insight puzzle (except Heavy Moving Service).

* Chapter 4: Trophy Cabinet [VAR1] (Insight) wasn't marked as (Insight) in the name.

* Community Levels: Split into four chapters (Sweet Treats, Voices from the Void, Revisions, Future Technology). Add Graduation [REV1], Heaven [REV1], The One-Way Put [VAR2] [VAR1], Jet Engine [VAR1], Elevator Pitch, Campfrost [VAR2], Coyote Time??, Crate Moving Service, Elevator Pitch [VAR1], Fire In The Sky [REV1] and its Insight, Foot Wiggle [VAR3], Hopscorch [VAR2], Invisible Bridge (for Heavy) [VAR1], Invisible Bridge (for Heavy)?, Purest Verticalest, One-Way Bridge.

* Added a 'question mark' timeline symbol that will show if no graphic was found but something should be displayed.

* 'Test Level' now lets you open the pause menu without booting you back to the level editor as long as the level is not currently won.

* Very large custom puzzles are now zoomed out to 1/2x scale. (In the Level Editor, use - to toggle zoom level.)