- update to version 0.8.11
 - Added:
  - New ``xonsh.color_tools.short_to_ints()`` function for directly
    converting a short (0 - 256) color into a 3-tuple of ints
    represeting its RGB value.
  - New ``xonsh.ansi_colors.ansi_reverse_style()`` function for
    converting a mapping of color names to ANSI escape codes into
    a mapping from escape codes into color names. This is not a
    round-trippable operation.
  - New ``xonsh.ansi_colors.ansi_color_escape_code_to_name()`` function
    for converting an ANSI color escape code into the closest xonsh
    color name for a given style.
  - New ``xonsh.events.EventManager.exists()`` method enables the checking
    of whether events actually exist with out making the event if it
    doesn't exist.
  - New command-specific event categories called ``on_pre_spec_run_<cmd-name>``
    and ``on_post_spec_run_<cmd-name>`` will be fired before and after
    ``SubpocSpec.run()`` is called.  This allows for command specific
    events to be executed.  For example, ``on_pre_spec_run_ls`` would
    be run prior to an invocation of ``ls``.
  - New ``xonsh.environ.LsColors`` class for managing the ``$LS_COLORS``
    environment variable. This ensures that the ``ls`` command respects the
    ``$XONSH_COLOR_STYLE`` setting. An instance of this class is added to the
    environment when either the ``$LS_COLORS`` class is first accessed or
    the ``ls`` command is executed.
  - The ``on_pre_spec_run_ls`` event is initialized with a default handler
    that ensures that ``$LS_COLORS`` is set in the actual environment prior
    to running an ``ls`` command.
  - New ``xonsh.tools.detype()`` function that simply calls an objects own
    ``detype()`` method in order to detype it.

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