Adding BSD license and copyright
Rough cut at History support (ongoing)
Use History to show trees (but not conflict views)
Hide/show trees in tandem with browser history
Merge pull request #346 from OpenTreeOfLife/tab-and-tree-history

Track tab changes and tree popups in browser history
Itemize (and link to) supporting trees in viewer.

This adapts to the existing sourctToMetaMap structure, and adds direct
links to each supporting tree (not just the study) for an edge of the
synthetic tree.
Liberalize robots.txt file for SEO (see #348)

This exposes published studies (read-only views) in the curation app,
and About and Contact pages in the main webapp.
Clarify robots.txt for files.opentreeoflife.org

Regarding #348, this should prevent attempts to index large .tgz files.

N.B. We can't exclude *.tgz files per se, only block the paths where
they are located. This will block the explanation pages at /trees and
/ott, as well as other files on these paths. (If that's no good, we
should quarantine the .tgz files on a separate path and block it.)
Restored adjusted OTU labels (hints applied)
Refine cleanup of failed OTU mappings; fixes #344

We're now much more careful about when to clobber failed OTU mappings,
so as not to force doomed retries.
Improve list update during bulk OTU mapping (#344)

This should make a more coherent list when approving a proposed OTU
mapping. The approved OTU will disappear from the list, and the
following items will "close ranks" instead of a new OTU appearing in its
place.
Right-click to open a synth-node in new window.

This helps to compare parts of the synthetic tree in adjacent windows or
tabs. Display behavior depends on browser settings and (possibly) popup
blockers. Fixes #213.
Merge branch 'master' into notParsingNodeLabels