Expand/shrink backward edge of selection#36

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MikeTheGreat wants to merge 3 commits intoleoliu:masterfrom

MikeTheGreat:master

Commits on Nov 24, 2018

Tentative change: [,] adjust left edge for 'word'
MikeTheGreat
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Commits on Dec 17, 2018

Removed 'message' lines that were used for printf-style debugging
MikeTheGreat
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Remove my 'todo' comment from the top of the file
MikeTheGreat
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