changes after merging with yannis files, changes in article view:subjects in trust order - citations - related data splitted in sections - similar publications in trust order
added modal file. needed for the popups to have the themes style.
language file changes
created tag folder for release
merged commit 30060 from dnet11
added note for Zenodo when the institution cannot be found in our db. Fixing part of #745
updating widget with publication url
Closing #668
Closing #623