merged branch hhamon/doc_fixes (PR #737)

Commits
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953a0ce [doc] fixed Composer section of the introduction. Added a side note to the Composer official documentation for getting more information.

Discussion
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[doc] fixed twig version in installation documentation.

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by lyrixx at 2012-05-25T23:30:01Z

why not use something like "1.*" ?

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by fabpot at 2012-05-26T05:55:16Z

This is just an example and we are not going to update it with each new release. So, we can either use `1.*` as suggested by @lyrixx or/and add a note referring to the Composer docs.

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by hhamon at 2012-05-28T05:34:54Z

That's better indeed!

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by hhamon at 2012-05-28T05:40:46Z

@fabpot you can merge this PR

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by fabpot at 2012-05-28T06:07:05Z

Can you squash?

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by hhamon at 2012-05-28T06:31:42Z

@fabpot squashed!