Update Symfony packages to ~3 - #4

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kporras07 wants to merge 3 commits into

TestDrupal:masterfrom

kporras07:update

Commits on Oct 5, 2017

Update depedency-injection.
kporras07
committed
5289a58
Update event dispatcher and config.
kporras07
committed
fc0dc80
Update css-selector.
kporras07
committed
f8d9f58