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Update dependencies with forced upgrade. (#15344)

* Update dependencies with forced upgrade.

Now that https://github.com/flutter/flutter/issues/15261 is fixed, do the update with upgrade.

* Update test package use following upgrade

* Replace addOption(allowMultiple) with addMultiOption
A
Alexander Aprelev committed
ded538a1bb0e462e573111af92d007151c574cea
Parent: 5d03a59
Committed by GitHub <noreply@github.com> on 3/9/2018, 6:38:54 PM