jmw784
*   bc0d946 End node layer 4 (merge)
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| *   bcc59ee Bottom node layer 3 (merge)
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| | * b0fc145 Bottom layer 2
* | |   00e56e7 Top node layer 3 (merge)
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| * | 7e980e6 Top node layer 2
* | |   161af53 Middle node layer 2 (merge)
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| * a6fe266 Top node layer 1
* | 19d246b Bottom node layer 1
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* 9752434 1st commit (1st on master)
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