Accelerometer: ADXL345, support, test, example, breadboard, etc.

commit 5a23788d92b3d4114b55173cc6fc39cd80ac1552
Author: Rick Waldron <waldron.rick@gmail.com>
Date:   Tue Dec 30 12:29:10 2014 -0500

    Fix broken test

commit 46c6f984cad1723ecb3dad2f35922b8faadafba4
Author: Rick Waldron <waldron.rick@gmail.com>
Date:   Tue Dec 30 12:27:24 2014 -0500

    Cleanup breadboard circuit diagrams

commit 2f16b90f2cf0a0caac87b7c2fbdd50e0e730fed6
Author: Rick Waldron <waldron.rick@gmail.com>
Date:   Tue Dec 30 12:25:08 2014 -0500

    Use read register 0x32

commit d4cfa969fa68aa7e982e36ccdabfdcb2908f3764
Author: Rick Waldron <waldron.rick@gmail.com>
Date:   Tue Dec 30 11:52:51 2014 -0500

    Updates per review

commit dbe259930d58b019c91f098bf647f13953914f49
Merge: 732a467 f554993
Author: Rick Waldron <waldron.rick@gmail.com>
Date:   Sat Dec 27 15:30:03 2014 -0500

    Merge branch 'master' of github.com:rwaldron/johnny-five into ADXL345

    * 'master' of github.com:rwaldron/johnny-five:
      Changing maxValue to sensitivity.  Getting the sensitivity from the datasheet

commit 732a467098e85722c063f5f2473feb0b4f2cf5cb
Author: Rick Waldron <waldron.rick@gmail.com>
Date:   Wed Dec 24 16:34:15 2014 -0500

    Convert to g-units

commit 48e3df088185a21847d98e9d826c8782b13de78f
Author: Rick Waldron <waldron.rick@gmail.com>
Date:   Wed Dec 24 13:36:25 2014 -0500

    Accelerometer: ADXL345, support, test, example, breadboard, etc.