v0.8.5-rc.1

Full Changelog

• Build the js-sdk in the CI script
  #612
• Fix redacted member events being visible
  #609
• Use getStateKey instead of getSender
  #611
• Move screen sharing error check into platform
  #608
• Fix 'create account' link in 'forgot password'
  #606
• Let electron users complete captchas in a web browser
  #601
• Add support for deleting threepids
  #597
• Display msisdn threepids as 'Phone'
  #598