export button now refers to tree_data.py
Merge branch 'master' of git://github.com/Swarthmore/litterfall
Merge branch 'master' of git://github.com/Swarthmore/litterfall
Merge branch 'master' of git://github.com/Swarthmore/litterfall

Conflicts:
	html/collections/tree_data/Plot.js
Merge branch 'master' of git://github.com/Swarthmore/litterfall
fixed issue #54 so the info button doesn't look like a link