remove caskroom_only in adobe-arh
remove caskroom_only in flavours
remove caskroom_only in switchresx
Merge pull request #6257 from Ihavee/Ihavee

Upgrade shadowsocksx to 2.2, upgrade iTools to 2.4.1
Merge pull request #6246 from rolandwalker/remove_caskroom_only

Remove `caskroom_only` from three Casks
Update ccleaner 1.09.313 sha256.
Upgrade Fantastical.app to 1.3.17
Merge pull request #6260 from crainiarc/fantastical

Upgrade Fantastical.app to 1.3.17
Merge pull request #6259 from hswong3i/hotfix/ccleaner-sha256

Update ccleaner 1.09.313 sha256.
Update Mailbox to 0.3.10
Merge pull request #6261 from dlackty/mailbox-0310

Update Mailbox to 0.3.10
Update iTools SHA256