removed non-MIT/BSD licensed bundles and librairies
merged branch symfony/mit (PR #535)

This PR was merged into the master branch.

Discussion
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removed non-MIT/BSD licensed bundles (closes #442)

In #442, there is a discussion about the license of librairies and bundles included in the Symfony Standard Edition.

This pull requests removes all non-MIT/BSDlicensed code from Symfony SE. The impact is not that big and adding back those bundles is relatively easy.

Any thoughts before I merge?

Commits
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d84850a removed non-MIT/BSD licensed bundles and librairies
removed obsolete code (managed by Composer now -- closes #539)