Issues with package

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Fix in difftool comparer

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Featuregrid first

Start of featuregrid. Moved some classes and things around, and added a
start for the featuregrid.
Featuregrid finish

Finished featuregrid
Change to DiffTool

Expanded entries will be colored blue, so you know which ones are open.
Empty workbench
Removed builds folder

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Merge remote-tracking branch 'origin/featuregrid'