Revert 2e8c0f4..99a5ef4

This rolls back to commit 2e8c0f4c0e6f3e6a44b0c0887e52dca974b7db51.
Revert 99a5ef4..a4babbb

This rolls back to commit 99a5ef4b7bc976593162c2759955bb17eedeb6f9.
Fix ColorBox Height in WordPress 3.8

Fixes last pull request
(https://github.com/humanmade/backupwordpress/pull/416) where it caused
scrolling to act weird. Reworked the UI to allow the 85% height.