Collective.embeddedpage

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- Fix German translation "Show After" and "Show Before".
[timo]

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- Use chardet package to detect the encoding of the embedded page.
[rodfersou]

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- Move stylesheets from head to body.
[rodfersou]

- Add tests.
[rodfersou]

- Add data-embedded attribute to inspect what page
is being embedded with no need to login.
[rodfersou]

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- Fix the content type when request script.
[rodfersou]

- Fix iframe relative path to full path.
[rodfersou]

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- Forward script requests from plone server.
[rodfersou]

- Forward requests and params to original page.
[rodfersou]

- Convert html parsed data to string with html method.
[rodfersou]

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- Re-release 1.0.0a6 as final release.
[timo]