Find-job-titles

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* fixed tox tests for py27 re: different unicode treatment by acora and pyahocorasick
* only testing default `Finder` using pyahocorasick now.

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* rewrote and fixed longest match code
* added pyahocorasick implementation and made default
* added params to enable/disable longest matches

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* updated title list with marketing execs
* set non-dev version

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* updated title list (- surnames, - blacklist, + added_roles)

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* proper tracking of code with releases