API: Expect column named 'particle' instead of 'probe'.

Not everyone is using this for microrheology....
Merge pull request #21 from danielballan/call-probe-particle

API: Expect column named 'particle' instead of 'probe'.
DOC: Update examples after probe -> particle API change.
Merge pull request #22 from danielballan/call-probe-particle

DOC: Update examples after probe -> particle API change.
DOC: Add community blurb, update roadmap, tweak install.

DOC: Add blurb about this code relation to other community code.

DOC: Update roadmap.
Merge pull request #26 from danielballan/readme-edits

DOC: Add community blurb, update roadmap, tweak install.
DOC: Remove mr docs, update trackpy docs.
Merge pull request #27 from danielballan/sphinx

DOC: Remove mr docs, update trackpy docs.
CLN: Remove lingering references to mr in doc make and conf.
Add dependencies to setup.py for ReadTheDocs.
Merge pull request #28 from danielballan/sphinx

Sphinx
BLD: Fix dependency links.
Merge pull request #29 from danielballan/sphinx

BLD: Fix dependency links.
DOC: Add link to ReadTheDocs.
Merge pull request #30 from danielballan/sphinx

DOC: Add link to ReadTheDocs.
DOC: More ReadTheDocs tweaks.
Merge pull request #31 from danielballan/sphinx

DOC: More ReadTheDocs tweaks.
DOC/CLN: Conform strategy docstrings to standard, also add validation.
Merge pull request #32 from danielballan/strategies

DOC/CLN: Conform strategy docstrings to standard, also add validation.
BLD: Add wire module to packages list.