Revert "temporarily hide link to eu_legislation"

This reverts commit 7474c7f0f6bce9d6185bc4c9e1f24cde67024499.
added EU Legislation page to robots.txt
fixed trade path in robots.txt
Added a border to show more clearly what taxonomy a taxon concept belongs to
Created method to fill CMS distributions information from CITES distribution information
Renamed taxon_relationships @taxonomies variable to @form_taxonomies as it was clashing and overriding the search @taxonomies var
removed trailing space *whistle*
Set links to taxon_relationships tab
Always copy over the tag_list from CITES to CMS