Merge branch 'hotfix-0.8.4'
revert to previous version of the file upload field
fix English tooltip for source selector
fixed links on CITES Trade website
removed error_selector, as it is no longer used
extended validation rule scope to allow for exclusions
fix default csv separator for admin trade
added a csv separator tooltip to public trade
changed csv separator tooltip text
removed obsolete class
updated schema annotations
fixed transition after sandbox submitted
make sure filters get cleared (when navigating away and back)
internal_notes management & display in admin tool
internal notes in admin downloads (taxa & distributions)
updated schema annotations
initialize tooltips after ajax update
do not nest p tags
skip distribution validations for higher taxa
display internal note as a bubble in opinions list