Numerous small updates to guides.
* linsk for image attribution
* bugfix: new sections now editable before saving
* dialogs show no content notice when nothing returned
* hide edit buttons when you can't edit
* some i18n
Added short title to taxon links.
Added icons to project.
Added spatial associations for guides.
First stab at tag-based nav for guides.
minor changes on translations
Merge remote-tracking branch 'upstream/master'