Optimizebot.
Merge branch 'develop'
Using the wpcom_vip_is_valid_domain() function to check the embeds.
Using the wpcom_vip_is_valid_domain() to whitelist the valid domains.
Added copyright footer info
Merge branch 'master' of https://github.com/Make-Magazine/makerfaire

# By Jake Spurlock (4) and Bill Olson (1)
# Via Jake Spurlock
* 'master' of https://github.com/Make-Magazine/makerfaire:
  Using the wpcom_vip_is_valid_domain() to whitelist the valid domains.
  Using the wpcom_vip_is_valid_domain() function to check the embeds.
  Dropping hte wp_kses, and changing how the embed can work for Ustream/Fora.tv videos.
  Optimizebot.
  Modal shortcode