Post-OL-upgrade regression checks

[jumpinjackie]

• In a multi-map configuration, making a buffer on one map seems to clear/remove/invalid buffers created on other maps (ie. Switching back to another map that had a buffer and the buffer is gone, but its layer is still present in the legend). Did this behaviour happen before?
• In a multi-map configuration, if multiple maps have selections, reloading the viewer only restores selection of the active map. The other maps have the selection image, but no selection state. Did this happen before?
• Click selections seem broken as though the coordinate ordering had changed and is throwing off getPointSelectionBox
• Confirm line/area measurement results before and after.
• Verify stories behave as they do
• Fixup warnings reported by typedoc
• Need to do WebGL capability checks on init if a COG layer is being loaded and display an init warning if WebGL is not supported.
• [Invalid: Existing storybook looks like this already] OSM tiles from storybook look much smaller. Something we missed in OL migration regarding tilePixelRatio?
• Verify Developer's Guide samples still work
• Verify Viewer API sample still works
• MapGuide: Verify Theme still works
• MapGuide: Verify Redline still works
• MapGuide: Verify Query still works