[Merge] lp:~ahayzen/ubuntu-settings-components/add-cancel-method into lp:~phablet-team/ubuntu-settings-components/printer-components

[Jonas G. Drange]

Review: Approve

LGTM. We can improve the situation where a cancel operation fails later on.
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https://code.launchpad.net/~ahayzen/ubuntu-settings-components/add-cancel-method/+merge/316241
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