minor #471 Rename property to isOptional to correct autocomplete in annotations plugin (Koc)
minor #471 Rename property to isOptional to correct autocomplete in annotations plugin (Koc)

This PR was merged into the 4.0.x-dev branch.

Discussion
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Rename property to isOptional to correct autocomplete in annotations plugin

IDE suggests annotation fields depends on class properties, so it suggests `optional`. But correct name is `isOptional` because there is setter `setIsOptional`

Commits
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14ffc22 Rename property to isOptional to correct autocomplete in annotations plugin

sensiolabs/SensioFrameworkExtraBundle