better sharing of documents
updated translations, added base translation
update with instructions for social account
styling fixes
fix numbering
remove log messages
allow short username profile view
lastname only once on profile page
no error 500 when going to profile page of inexistent user.
remove prevention of autocomplete on signup form
don't print feedback tab
don't print extra page
formulas same size as surrounding text
don't remove mathjax definitions when last equation is removed
don't remove mathjax definitions when last equation is removed, part 2