Create LICENSE
Update .gitignore

better comments
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add brian gravel's link
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Update README.md
Merge pull request #39 from ExTechLab/cleanup

Cleanup
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Update README.md
Resized drawer sprites so they are 1/4 original size (total pixel count).

Fixed a couple of null reference bugs in simlite.js when highlighting
    multiple objects.
Merge branch 'master' of https://github.com/ExTechLab/simsam into gsi-merge