[css-flexbox] Minor editorial <http://lists.w3.org/Archives/Public/www-style/2014May/0057.html>

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extra : rebase_source : 618ae60635b549ad2b2c2d222d872c270fc0b6d9
[css-flexbox] Update DoC
[css-flexbox] Add an issue to the static pos section about how 2.1's static pos text is dumb.

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extra : rebase_source : 54ac70ead5b7c9e6485f93d881ab8f28520c5d66
[css-flexbox] Why were there \!Date and \!Deadline metadata fields? The world may never know.

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extra : rebase_source : 28370d14fffa9c69ee59a0f83524f003e57c2452