[Form] added prototype_data option in CollectionType#6450

Merged

wouterj merged 2 commits intosymfony:2.8from

HeahDude:fix/form_type-prototype_data_option

Apr 18, 2016

Commits on Apr 14, 2016

[Form] Document CollectionType's `prototype_data`

kgilden
authored and
HeahDude
committed
[Form] defined default and added example CollectionType `prototype_data` option
HeahDude
committed