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 Packages v1.1.2
Add Fiery Software Manager.app v2.0.0.15

Download latest at URL.
Manual install probably necessary but may review at later date.
Add Fiery Color Profiler Suite v4.6.2.08

Fiery Color Profiler Suite 4.app is an installer that points to multiple pkgs.
411MB download is moved to Caskroom and is still present after manual install.
TODO: Test installer of individual pkgs.
add appcast to iterm2
Update to julia 0.3.2
bump mendeley-desktop version
Merge pull request #6939 from betatim/patch-1

Update to julia 0.3.2
Merge pull request #6940 from bma/master

bump mendeley-desktop version
Merge pull request #6938 from exherb/iterm2-appcast

add appcast to iterm2
re-use version + zap in adobe-photoshop-lightroom

dial back zap stanza to only version-specific files
re-use version in anypass
re-use version in capsee
re-use version in flash-player-debugger
re-use version in garmin-ant-agent
re-use version in inform
re-use version in keymo
re-use version in komanda
re-use version in music-manager
re-use version in padre