LegendKeeper 0.18.0.2

Enable measure and navigation tool on calibrated maps in read-only mode.
Fix asset renaming in the new asset browser.
Hint browser to not use autocomplete on the filter bar.
More global middle-click-to-pan handling on the map.
Right click to undo point placement when in region or path edit modes.
Fix bug preventing drag and drop of files onto new asset manager.
More thorough invalid color handling on map view.
Public view: fix vertical scrolling issues when tables with horizontal overflow are present.
New image asset API; this shouldn't materially impact you, but if you see any asset-related bugs, let me know.