Backports [40883] from trunk to 4.8
Change version numbers in stylesheets, fix typo in Twenty Fourteen readme and update copyright dates for themes. Twentysixteen wasn't updated this cycle.
See #40745 for changes that helped push this along.
Fixes#40905.
Props davidakennedy, mrahmadawais, maedahbatool.
Built from https://develop.svn.wordpress.org/branches/4.8@40884
git-svn-id: http://core.svn.wordpress.org/branches/4.8@40734 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Bump version numbers and update readme files for themes with changes. Also updates description for Twenty Seventeen and removes version number for HTML5 shiv for easier updates in the future.
Props davidakennedy.
Fixes#38858.
Built from https://develop.svn.wordpress.org/trunk@39496
git-svn-id: http://core.svn.wordpress.org/trunk@39436 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Adds information about changes in the current release, links to changlogs from
previous releases, and improves links to use `https`.
Release date for the latest versions will be August 18 even in the event of a
delayed core release. Since all themes are backwards compatible we don't have
a dependency there.
Props mercime, davidakennedy.
Fixes#32978.
Built from https://develop.svn.wordpress.org/trunk@33463
git-svn-id: http://core.svn.wordpress.org/trunk@33430 1a063a9b-81f0-0310-95a4-ce76da25c4cd