TinyMCE: wpView improvements:

- Better structure, simpler "view" registration, better extensibility.
- Better inline documentation.
- Don't show a placeholder for pasted link until we know the link is "embeddable'.
And many more improvements. Props iseulde. See #31412.
Built from https://develop.svn.wordpress.org/trunk@31546


git-svn-id: http://core.svn.wordpress.org/trunk@31527 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-alpha-31545';
+$wp_version = '4.2-alpha-31546';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
@@ -18,7 +18,7 @@ $wp_db_version = 31532;
  *
  * @global string $tinymce_version
  */
-$tinymce_version = '4107-20141130';
+$tinymce_version = '4107-20150225';
 
 /**
  * Holds the required PHP version