* Add draft blog post for 1.4.0 release
* woops, forgot to commit the actual post...
* Forgot one new important feature
* MORE highlights, add list of contributors, reorder changes
* Update thanklist
* theme PR has been merged; hack no longer needed
* add help out section
* add screenshot for 3097
* Apply suggested edits by @bkcsoft
* Finish the Customize Gitea section
* move expected release date to 05/02
* reworked interface instead of finally responsive
* Reword a bit.
* Applying suggestions.
* Some more tweaking
* Fix release date and add download link