Log Message:
py-pyte: updated to 0.8.1

Version 0.8.1
- Yet another fix of ``Screen.set_margins`` for the case of CSI
  with no arguments.
- Changed ``Screen.erase_in_display`` to accept additional positional
  arguments as some some ``clear`` implementations include a ``;`` after
  the first parameter causing ``pyte`` to assume a ``0`` second parameter.
- Changed ``Stream`` FSM to reinit on error when parsing control sequence.
- Added support for blink to the SGR handler.
- Changed ``Stream`` to skip XTerm-specific ``ESC]...$[a-z]`` sequences.
- Dropped Python 2.X support. The minimal required version of Python is
  now 3.7.