accept uploadId or uploadid in to_nexson
comment only
Offer circular layout for curation tree viewer.

This is an option that ignores edge lengths. Its height and width will
adapt based on the total number of nodes, so big trees will require
scrolling within the tree viewer.
fix typo
fix graph doc
change example
fix to /graph/source_tree call
change example call to tree_of_life/about
Merge pull request #430 from OpenTreeOfLife/return-supporting-file

Return supporting file
devapi -> api
Merge pull request #444 from OpenTreeOfLife/circular-tree-layout

Offer circular layout for curation tree viewer.
Merge remote-tracking branch 'origin/master' into dont-check-out-oti