Change version to 1.0.0a1 and release it

LATEST_VERSION_NOTES.rst

 .. vim: set tw=100
-1.0.0: 2014-xx-xx
-~~~~~~~~~~~~~~~~~
+1.0.0a1: 2014-12-07
+~~~~~~~~~~~~~~~~~~~
 1.0.0 is a huge release. It includes a great deal of changes to ``github3.py``.
 It is suggested you read the following release notes *very* carefully.

github3/__init__.py

@@ -14,7 +14,7 @@ __title__ = 'github3'
 __author__ = 'Ian Cordasco'
 __license__ = 'Modified BSD'
 __copyright__ = 'Copyright 2012-2014 Ian Cordasco'
-__version__ = '1.0.0b1'
+__version__ = '1.0.0a1'
 __version_info__ = tuple(int(i) for i in __version__.split('.') if i.isdigit())
 from .api import (