Highly recommended#25

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john-costanzo wants to merge 13 commits intokeiranking:masterfrom

john-costanzo:highly-recommended

Commits on Aug 22, 2019

Indicate "harmonious" word pairs; implemeted Undo; fixed numbering defect

John Costanzo
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John Costanzo
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Commits on Sep 15, 2019

emphasize highly-recommended suggestions that are harmonious with across and down for the length of the word

John Costanzo
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John Costanzo
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changed order

John Costanzo
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John Costanzo
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Commits on Sep 18, 2019

support showSymmetricBlack (visually indicate where the symmetric black is on the grid)

John Costanzo
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John Costanzo
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Added styles for symmetric square high/lowlights

John Costanzo
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John Costanzo
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Commits on Sep 19, 2019

added hint to indicate where symmetric square is and Phil version

John Costanzo
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John Costanzo
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Made Ctrl-Z invoke undo

John Costanzo
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John Costanzo
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refactored saveStateForUndo()

John Costanzo
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John Costanzo
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Added some new and checked off some existing enhancements

John Costanzo
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John Costanzo
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Commits on Sep 23, 2019

remove useless parameter pos in checkHarmoniousness and check hpos instead

John Costanzo
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John Costanzo
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allow either control or meta Z for undo

John Costanzo
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John Costanzo
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Commits on Oct 18, 2019

If showOnlyRecommendations is true and there aren't any show all.

John Costanzo
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John Costanzo
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Commits on Oct 19, 2019

If showOnlyRecommendations but there are none retain recommendedness

John Costanzo
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John Costanzo
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