Conversion factors source. Fixes #274

SAP 2009
Merge pull request #283 from MastodonC/feature/conversion-sources

Conversion factors source. Fixes #274
Fixes to profile lists. Fixes #276

* All Walls
** Wall
** Wall

etc
Merge pull request #285 from MastodonC/feature/better-profiles

Fixes to profile lists. Fixes #276
Show more that 10 properties at a time. Fix #272

We weren't passing the size back to elasticsearch properly. Also, users
request to see more properties per page.
Merge pull request #286 from MastodonC/feature/show-more

Show more that 10 properties at a time. Fix #272
Add a 'Whoami' resource.
Consistent UI menus and show whoami.
Remove redundant requires.
Remove printlns
Add ajax error handler.