refs  #1338
ContextMenu Copy/Paste - WIP
Merge branch 'feature/issue-23' into feature/issue-23-merged
WIP - Copying should be functional by now
#23 - Copy and Paste functionality added to the Context Menu as a plugin
#23 - Test fixes
#23 - Added demo page for this feature
Fix for ctr+enter not propagating values to selected cells #hot-11
Added and tested fixes proposed by github user
Added template in demo
fixes #1636
[ WIP ] Selecting with a mouse or API should work correctly - selecting with keyboard still needs updating
[ WIP ] Update for the previous fix (selecting with keyboard still not working correctly)
[ WIP ] fix for tests failing
[WIP] keyboard selection should work fine, tests needed
Some tests added #HOT-14
fix inefficient querySelectorAll -> querySelector (#23)
test for set datamap
fixes #HOT-15
Fix for context menu paste not working #23
Fix for some tests failing - clicking inside any element with shadowDom (incl. <html>) was not treated as outside click
cleanup code that was never used
Merge branch 'develop' into feature/issue-23-merged