manually updated CHANGELOG.md

due to createRelease.sh not catching an error from sed and continuing:
   sed: -e expression ether#1, char 66: unterminated `s' command

CHANGELOG.md

@@ -1,57 +1,3 @@
-# 1.8
-* SECURITY: change referrer policy so that Etherpad addresses aren't leaked when links are clicked (discussion: https://github.com/ether/etherpad-lite/pull/3636)
-* SECURITY: set the "secure" flag for the session cookies when served over SSL. From now on it will not be possible to serve the same instance both in cleartext and over SSL
-
-# 1.8-beta.1
-* FEATURE: code was migrated to `async`/`await`, getting rid of a lot of callbacks (see https://github.com/ether/etherpad-lite/issues/3540)
-* FEATURE: support configuration via environment variables
-* FEATURE: include an official Dockerfile in the main repository
-* FEATURE: support including plugins in custom Docker builds
-* FEATURE: conditional creation of users: when its password is null, a user is not created. This helps, for example, in advanced configuration of Docker images.
-* REQUIREMENTS: minimum required Node version is **8.9.0 LTS**. Release 1.8.3 will require at least Node **10.13.0** LTS
-* MINOR: in the HTTP API, allow URL parameters and POST bodies to co-exist
-* MINOR: fix Unicode bug in HTML export
-* MINOR: bugfixes to colibris chat window
-* MINOR: code simplification (avoided double negations, introduced early exits, ...)
-* MINOR: reduced the size of the Windows package
-* MINOR: upgraded the nodejs runtime to 10.16.3 in the Windows package
-* SECURITY: avoided XSS in IE11
-* SECURITY: the version is exposed in http header only when configured
-* SECURITY: updated vendored jQuery version
-* SECURITY: bumped dependencies
-
-# 1.7.5
-* FEATURE: introduced support for multiple skins. See https://etherpad.org/doc/v1.7.5/#index_skins
-* FEATURE: added a new, optional skin. It can be activated choosing `skinName: "colibris"` in `settings.json`
-* FEATURE: allow file import using LibreOffice
-* SECURITY: updated many dependencies. No known high or moderate risk dependencies remain.
-* SECURITY: generate better random pad names
-* FIX: don't nuke all installed plugins if `npm install` fails
-* FIX: improved LibreOffice export
-* FIX: allow debug mode on node versions >= 6.3
-* MINOR: started making Etherpad less dependent on current working directory when running
-* MINOR: started simplifying the code structure, flattening complex conditions
-* MINOR: simplified a bit the startup scripts
-
-*UPGRADE NOTES*: if you have custom files in `src/static/custom`, save them
-somewhere else, revert the directory contents, update to Etherpad 1.7.5, and
-finally put them back in their new location, uder `src/static/skins/no-skin`.
-
-# 1.7.0
-* FIX: `getLineHTMLForExport()` no longer produces multiple copies of a line. **WARNING**: this could potentially break some plugins
-* FIX: authorship of bullet points no longer changes when a second author edits them
-* FIX: improved Firefox compatibility (non printable keys)
-* FIX: `getPadPlainText()` was not working
-* REQUIREMENTS: minimum required Node version is 6.9.0 LTS. The next release will require at least Node 8.9.0 LTS
-* SECURITY: updated MySQL, Elasticsearch and PostgreSQL drivers
-* SECURITY: started updating deprecated code and packages
-* DOCS: documented --credentials, --apikey, --sessionkey. Better detailed contributors guidelines. Added a section on securing the installation
-
-# 1.6.6
- * FIX: line numbers are aligned with text again (broken in 1.6.4)
- * FIX: text entered between connection loss and reconnection was not saved
- * FIX: diagnostic call failed when etherpad was exposed in a subdirectory
-
 # 1.6.5
  * SECURITY: Escape data when listing available plugins
  * FIX: Fix typo in apicalls.js which prevented importing isValidJSONPName