Plugins - Delete lock file even on exception, only leave it in place on crash
Plugins - Added --ignore-plugin-lock startup argument
UI - Renamed -autorun argument to --autorun
Brush properties - Added default values
Brush properties - Removed option to always auto-expand groups
Layer properties - Remember expanded/collapsed groups
Storage - Added migration system
Storage - Added migration that removes profiles made in the old layer properties format
Layer timeline - Added back zoom functionality