fgm/php__symfony__book: FGM's version of the code suggested in the SF4 book. @ getting-started

Frederic G. MARAND d230f127f7 Ch. 4: Using session data.		7 gadi atpakaļ
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dev	deeb7894a7 Ch. 2: profiler, twig.	7 gadi atpakaļ
test	deeb7894a7 Ch. 2: profiler, twig.	7 gadi atpakaļ
framework.yaml	d230f127f7 Ch. 4: Using session data.	7 gadi atpakaļ
routing.yaml	f8830b8a47 Initial commit: generated skeleton + composer require server.	7 gadi atpakaļ
twig.yaml	deeb7894a7 Ch. 2: profiler, twig.	7 gadi atpakaļ