sync with source

Allow changing map tilesets

Add ability to change map border

Events Editing

Are these only present on non-Windows computers?

Support new map organization

Update parsing of new object_event macro

'Map Object' -> 'Event Object'

Fix event_object_movement.c filepath

Edit Map Connections

Properly support painting tiles from secondary tileset

Fix collision and elevation selections

Add multi-block and smart-path tile painting