0.9.0

• Connection refactor and test fixes (wizzat - #134)
• Fix when partition has no leader (mrtheb - #109)
• Change Producer API to take topic as send argument, not as instance variable (rdiomar - #111)
• Substantial refactor and Test Fixing (rdiomar - #88)
• Fix Multiprocess Consumer on windows (mahendra - #62)
• Improve fault tolerance; add integration tests (jimjh)
• PEP8 / Flakes / Style cleanups (Vetoshkin Nikita; mrtheb - #59)
• Setup Travis CI (jimjh - #53 / #54)
• Fix import of BufferUnderflowError (jimjh - #49)
• Fix code examples in README (StevenLeRoux - #47 / #48)