Add note about shared OCID data format, refs #295.
Clarify user vs. app sentence in api page.
Remove outdated config setting, output stderr from gunicorn to a file.
Reorder top-level menu items alphabetically and test contact page.
Update to latest version of simplejson.
Update to latest version of nose.
Clarify api usage policy.

Remove the non-commercial/open-source aspect, as the community noted this
as problematic.
Initial sketch of OpenCellID import code, cc #283
Support and test OCID cells in ichnaea.service.locate code path, cc #283.
Address review comments, cc #283.
Add support for importing already-existing rows as updates, close #283.