First release of blessings fork

• Forked github project erikrose/blessings to jquast/blessed, this
  project was previously known as blessings version 1.6 and prior.
• introduced: context manager cbreak() and raw(), which is equivalent
  to tty.setcbreak() and tty.setraw(), allowing input from stdin to be
  read as each key is pressed.
• introduced: inkey() and kbhit(), which will return 1 or more
  characters as a unicode sequence, with attributes .code and .name
  non-None when a multibyte sequence is received, allowing arrow keys and
  such to be detected. Optional value timeout allows timed polling or
  blocking.
• introduced: center(), rjust(), ljust(), strip(), and
  strip_seqs() methods. Allows text containing sequences to be aligned
  to screen, or width specified.
• introduced: wrap() method. allows text containing sequences to be
  word-wrapped without breaking mid-sequence and honoring their printable
  width.
• bugfix: cannot call setupterm() more than once per process -- issue a
  warning about what terminal kind subsequent calls will use.
• bugfix: resolved issue where number_of_colors fails when
  does_styling is False. resolves issue where piping tests
  output would fail.
• bugfix: warn and set does_styling to False when TERM is unknown.
• bugfix: allow unsupported terminal capabilities to be callable just as
  supported capabilities, so that the return value of term.color(n) may
  be called on terminals without color capabilities.
• bugfix: for terminals without underline, such as vt220,
  term.underline('text'). would be u'text' + term.normal, now is
  only u'text'.
• enhancement: some attributes are now properties, raise exceptions when
  assigned.
• enhancement: pypy is now a supported python platform implementation.
• enhancement: removed pokemon curses.error exceptions.
• enhancement: converted nose tests to pytest, merged travis and tox.
• enhancement: pytest fixtures, paired with a new @as_subprocess
  decorator
  are used to test a multitude of terminal types.
• enhancement: test accessories @as_subprocess resolves various issues
  with different terminal types that previously went untested.
• deprecation: python2.5 is no longer supported (as tox does not supported).