Release 3.0: Update Python support to 2.7 and 3.5+

Release 2.4: Allow capture without relay, add Python 3.6 to supported…

… versions

Release 2.3: Improved documentation, wheel distributions and more*

Other changes included:
 - PEP-8 and PEP-257 checks
 - Python 3.5 and Mac OS X testing on Travis CI
 - Clarified documented supported operating systems

Release 2.2: Switch to humanfriendly.terminal.clean_terminal_output()

Make it easier to run test suite from PyPI release (fixes #3)

Make "nested" output capturing work as expected (issue #2)

Refer to issue 2 on GitHub for details:
  #2

Experimental support for capturing stdout/stderr separately (issue #2)

Refer to issue 2 on GitHub for details:
  #2

Expose captured output as file handle (w/ shortcuts for saving to files)

Initial commit