Bump version [skip ci]

CHANGES.rst

@@ -4,6 +4,11 @@
 
 .. currentmodule:: gevent
 
+1.2.2 (unreleased)
+==================
+
+- TBD
+
 1.2.1 (2017-01-12)
 ==================
 

src/gevent/__init__.py

@@ -16,10 +16,10 @@ _version_info = namedtuple('version_info',
 #: The programatic version identifier. The fields have (roughly) the
 #: same meaning as :data:`sys.version_info`
 #: Deprecated in 1.2.
-version_info = _version_info(1, 2, 1, 'final', 1)
+version_info = _version_info(1, 2, 2, 'dev', 0)
 
 #: The human-readable PEP 440 version identifier
-__version__ = '1.2.1'
+__version__ = '1.2.2dev0'
 
 
 __all__ = ['get_hub',