mention that the PR must reference trac ticket
Updating source version to 1.10.0-pre
Listen to mousedown/mouseup instead of touch.press/touch.release.
This avoids the problem where scrolling the list on a touch device inadvertently
selects an item.

Clicking on touch devices is covered by the click listener.

Fixes #17388.
Fix typo in CONTRIBUTING.md, refs #17189
Focus first item in drop down when opened via keyboard in JAWS.

Fixes #17426, refs #10716.
Fix a queryOptions problem that occurs when a FilteringSelect loses focus and does a store lookup.
Fixes #17434, refs #12373.
add test case, refs #17434
Treat a click on the scrollbar in the popup wrapper as a click on the popup.
Fixes #17435, refs #10631.
fix hints to be non-ambiguous, refs #12367
Fixes #17453.  Check for redOnly before formatting the text value for editing.
Fix JS errors occurring during EnterKeyHandling in IE11. Curiously, the tests did not catch them. Fixes #17466.
fix stray global, refs #15097
fix ref to undefined "evt", refs #16323
Do not call _KeyNavMixin#_onFocus from Select#_onFocus

Fixes #17492.
test tabindex not set to -1 on focus, refs #17492
fix CSS when pressing Dialog close icon, fixes #17501
Fixes #17390.  Don't always override an instance's constraints with am empty object.
Setting nested TabContainer title shouldn't set title attribute, fixes #17504.
fix error deleting selected RadioMenuItem, fixes #17519