Fix #1098 - editablePaste not triggering on keyboard paste

[nmielnik]

Q	A
Bug fix?	yes
New feature?	no
BC breaks?	potentially
Deprecations?	no
New tests added?	yes
Fixed tickets	#1098
License	MIT

Description

The new paste handling code injects a temporary element to capture keyboard pastes. By introducing this new element, which is not part of the editor element, it prevented the paste event from being triggered on the editor, which would mean the editablePaste event also would not be triggered.

The fix was to manually trigger the editablePaste event whenever keyboard paste occurs.

Since some of this triggering happens within a setTimeout() after the paste event, we won't always have a valid event object to use when manually triggering editablePaste. So, to ensure everything works consistently in all cases, the editablePaste event was modified everywhere to trigger with a fake-event object which only has the currentTarget and target properties.

[coveralls]

Coverage increased (+0.05%) to 94.89% when pulling 8bd8f8f on editable-paste-fix into 0820080 on master.