Incorporates #147
- Fix: Ensure shift-key cycling through flyouts works with extension-added
`includeWith` as well as toolbarbuttons
- Fix: Apply flyout arrows after extensions callback
- Fix: Ensure SVG icon of flyout right-arrow is cloned to can be applied to
more than one extension
- Fix: Ensure line tool shows as selected when "L" key command is used
- Refactoring: Avoid passing on `undefined` var. (#147)
- Refactoring: lbs; avoid indent in connector, destructuring, use map over push
- Docs: Clarify nature of fixes
- Docs: JSDoc for `setupFlyouts`, `Actions`, `toggleSidePanel`; missing for
ToolbarButton
0a2da503f1