modify zh_CN translation
Merge branch 'next' of https://github.com/SuyoungWang/elabftw into next

* 'next' of https://github.com/SuyoungWang/elabftw:
  modify zh_CN translation
add something at the end of a duplicate XP title

Idea is from Mary @openhelix.
It adds a I. It's easier than if it were a number that you had to
increment.
bigger close button on todolist
update tinymce and jquery-ui
add back the lang files that are deleted by the bower update

in tinymce
add required on tpl name input
add link to ucp on profile page
make file comment zone editable immediatly after upload. fix issue #54
reminify bigUpload.js
remove two console.log…
and a last one
fix translation handle
deport clear all button to the bottom left on todolist

so it is not clicked on by error!
fix bugs introduced with the automatic search and replace
some css changes to the todolist
fix translations on team page
put log menu on left (fix issue in chrome btw)
fix other lang also
fix translation, add gettext check on install and in doc