Bumping major version number due to compatibility break

Bumping to 1.0 to indicate we're breaking backward compatibility
by a recent merge dropping support for older End-of-lifed versions of
Python (2.7, 3.7, 3.8).

We probably still run on those, for now, but github CI no longer
supports them, so we aren't systematically running tests against
them.

Author: tartley

colorama/__init__.py

@@ -3,5 +3,5 @@
 from .ansi import Fore, Back, Style, Cursor
 from .ansitowin32 import AnsiToWin32
 
-__version__ = '0.4.7dev1'
+__version__ = '1.0.0dev1'