Pyrone

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* major documentation update
* new sample configuration files

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* major code cleanup (PEP-8)
* fixed twitter authentication (issue 43)

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* added simple article markup editor
* fixed issue 35: Add code blocks syntax highlighter
* article action links replaced with images
* new article markup instructions
* translation fixes

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* fixed issue 40: broken next/prev link on "tag" pages
* fixed issue 8: handle url that ends with slash
* fixed issue 41: added site search widget

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* default mysql engine driver changed to MySQL-python from pymysql
* frontend has been moved to jQuery from Ext.Core
* some minor admin gui improvements (more handy settings page)
* tunable social services buttons
* added backups download
* translation fixes
* internals: new password hashing method
* internals: new role-based users system
* internals: backup version is 1.1 now, old backups are supported

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* css styles update
* added product version to admin page
* product version is now stored in the module pyrone, not in setup.py
* resolved issue 12