Spinrewriter

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- Replace development tools and 100% test coverage.
[matejc]

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- Added tests for parsing error messages and fixed loads of nasty bugs found
while writing these tests.
[zupo]

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- Fixed spelling error in one of authentication error's message.
[zupo]

- Use 'vvv' for syntax validation.
[matejc]

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- Fixed unicode encode/decode error for article texts containing non-ascii
characters.
[plamut]

- Added missing test coverage for the unique_variation_from_spintax method.
[plamut]

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- Various fixes of bugs that surfaced when lib was put into staging.
[zupo]

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- A URL in README.txt was missing a leading ``http`` which broke reST rendering
on PyPI.
[zupo]