Generate the  parameter automatically for new Symfony projects
feature #79 Generate the `secret` parameter automatically for new Symfony projects (jzawadzki)

This PR was squashed before being merged into the 1.0-dev branch (closes #79).

Discussion
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Generate the `secret` parameter automatically for new Symfony projects

As per #77 I've added generating secret key and putting it into `app/config/parameters.yml`.

I've didn't throw any exception in case file would't be writable, as I believe such situation is not possible?

If this should be done in a different way (or with better error handling) please let me know.

Commits
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7df2d9c Generate the  parameter automatically for new Symfony projects