avoid exit code with no Casks are installed

and no argument is give to `brew cask list`.  Fixes #3881.
Add Cryptol
Merge pull request #4048 from NanoXD/master

Texshop: Fix SHA-2
Merge pull request #4049 from NanoXD/master

Tagoman: Fix SHA
Merge pull request #4050 from NanoXD/master

Tactor: Fix shasum
Merge pull request #4051 from NanoXD/master

Fix Checksums
Adapt to homebrew's move of the tap directory

Closes #4035. Closes #4029. Closes #4026.
Merge pull request #4039 from rolandwalker/empty_list_exit_code

avoid exit code with no Casks are installed
Merge pull request #4046 from ndr-qef/cryptol

Add Cryptol
Merge pull request #4042 from rolandwalker/tap_location_change

Adapt to homebrew's move of the tap directory
cut v0.33.0
Upgrade P4Merge to v2014.1
Merge pull request #4059 from jcgay/p4merge

Upgrade P4Merge to v2014.1
UninstallPkg 1.0.5
- Update UninstallPkg 1.0 -> 1.0.5
Merge pull request #4061 from hanxue/uninstallpkg

UninstallPkg 1.0.5
Poedit 1.6.4b2569
- Update to latest Mac release build 2569 available since 27 Feb 2014
SHA256 mismatch.

Apparently, Oracle has updated the file.
Merge pull request #4070 from jonathanmarvens/patch-1

SHA256 mismatch.
Merge pull request #4068 from hanxue/poedit

Poedit 1.6.4b2569
Fix Poedit's homepage