Fixes to broken homepage links - 2 in banner text, 2 cc-by links. Need to be tested on QA. Part of Jan MVP fixes and Upfront quote.
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fix register link
Merge branch 'NicolaJanMVPHomepageLinkFixes' into mvp-fixes
use MathJax CDN which should upgrade us to the latest MathJax
remove string substition
add action to change password
remove edit-bar on user data panels
update dependencies