Bump version number

Author: uvchik

setup.py

@@ -8,7 +8,7 @@ def read(fname):
 
 setup(
     name="windpowerlib",
-    version="0.2.1dev",
+    version="0.2.1",
     description="Creating time series of wind power plants.",
     url="http://github.com/wind-python/windpowerlib",
     author="oemof developer group",

windpowerlib/__init__.py

@@ -1,6 +1,6 @@
 __copyright__ = "Copyright oemof developer group"
 __license__ = "MIT"
-__version__ = "0.2.1dev"
+__version__ = "0.2.1"
 
 from .wind_turbine import WindTurbine  # noqa: F401
 from .data import get_turbine_types  # noqa: F401