Anywhere we can use `blob/master` we can use `blob/HEAD` instead. This
will make life easier if we ever rename our default branch in future
(once/if Git and GitHub provides the necessary tooling to do so).
'cask upgrade' command collects all exceptions thrown
from individual casks during the upgrade process. If
there were more than one cask that raised exceptions
during the upgrade process, a MultipleCaskErrors
exception will be thrown.
Issue #5203
Gatekeeper's Path Randomization is currently making automated
installation a nightmare. Let's manually toggle the (undocumented) app
translocation bit in the `com.apple.quarantine` extended attribute.
While we're at it, let's also toss in some fixes:
- zip downloads with improper permissions that prevent us from
quarantining
- quarantine/release/skip downloads as requested by the user
