Fix roundup

Fix roundup:

  • Fixes for choose tagtag A directory in Subversion. WordPress uses tags to store a single snapshot of a version (3.6, 3.6.1, etc.), the common convention of tags in version control systems. (Not to be confused with post tags.) from tag cloud
  • Rewrite rules fixes for certain hosts
  • Don’t check for updates on every page load
  • Easier post box dropping
  • Preview fixes
  • RTL fixes
  • Fixed broken wp-mail

#27, #dev-notes