TinyMCE: do not override `line-height` for paragraphs and headings in 4.6+, makes them hard to read.

Fixes #40743.
Built from https://develop.svn.wordpress.org/trunk@40654


git-svn-id: http://core.svn.wordpress.org/trunk@40517 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/js/tinymce/skins/wordpress/wp-content.css

@@ -21,6 +21,18 @@ body {
 	word-wrap: break-word; /* Old syntax */
 }
 
+/* Changed in 4.6.0, see https://core.trac.wordpress.org/ticket/40743 */
+.mce-content-body p,
+.mce-content-body div,
+.mce-content-body h1,
+.mce-content-body h2,
+.mce-content-body h3,
+.mce-content-body h4,
+.mce-content-body h5,
+.mce-content-body h6 {
+    line-height: inherit;
+}
+
 body.rtl {
 	font-family: Tahoma, "Times New Roman", "Bitstream Charter", Times, serif;
 }

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.8-alpha-40653';
+$wp_version = '4.8-alpha-40654';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.