Downgrade CaskAlreadyInstalledError to a warning

Automatic installs - like thoughtbot's laptop script - fail when we
use Homebrew's onoe method.  Using opoo (to warn) will let the
scripts complete successfully when they try to install packages that
have already been installed.

Test for downgrading AlreadyInstalledError to warning
Add Blackvue Viewer
updated fakethunder
Merge pull request #6843 from exherb/blackvue-viewer

Add Blackvue Viewer
add binary in Skim.app Cask

Skim has three shared command line tools, displayline, skimnotes and
skimpdf. Other applications may need these binaries to interact with
Skim, for features like TeX-PDF Synchronization etc.
Update to version 0.3.0

Kitematic has just released a new version that solves some problems for people on Yosemite. https://github.com/kitematic/kitematic/issues/99#issuecomment-59678616
Merge pull request #6859 from pan-long/update-fakethunder

updated fakethunder
use "staged" instead of "installed" for Caskroom

refs: #6783
demote the Tap migration banner in FAQ.md
hide error outputs from plutil
Add Bowery version 3.2.7
Update virtualhostx.rb
Add Stepmania.app v5beta4
Merge pull request #6858 from vinkla/bowery

Add Bowery version 3.2.7
Rename e-tax-2014.rb to e-tax2014.rb
Edit Cocktail cask in order to use conditionals
Merge pull request #6860 from paracycle/patch-1

Update Kitematic.app to v0.3.0
Merge pull request #6867 from fza/master

Edit Cocktail cask in order to use conditionals
Merge pull request #6861 from yipeipei/fix-skim-binary

add binary in Skim.app Cask
basic docs for stub gpg stanza