Unify naming of "field" templates

field -> field   (unchanged)
plot_field -> field_td   (same as "field", but uses <td>)
species_field -> field_species_td  (variant for species, uses <td>
(new) -> field_species   (same as "field_species", but uses <li> like "field")
Edit tree fields on map page

* Remove existing popup when leaving "browse trees" mode
* Allow changing an inlineEditForm's "updateUrl" after it has been initialized
* When user clicks a tree, set URL for updating that tree on inlineEditForm
* Initialize species typeahead
* Scope "editFields" etc. selectors on inlineEditForm, since to avoid collisions with "add trees" mode