add hydra window manager
add ansible and ios webkit debug proxy to brew installs
vagrant is a cask, not a brew, bru
add vagrant manager
remove screenhero
add plex media server to caskss
add robomongo cask
Merge branch 'master' into private

* master:
  add robomongo cask
  add plex media server to caskss
  remove screenhero
  add vagrant manager
  vagrant is a cask, not a brew, bru
  add ansible and ios webkit debug proxy to brew installs
  add hydra window manager