Merge pull request #131 from Yelrose/master

Update to PGL v1.2.0

pgl/__init__.py

@@ -13,7 +13,7 @@
 # limitations under the License.
 """Generate pgl apis
 """
-__version__ = "1.1.0"
+__version__ = "1.2.0"
 from pgl import layers
 from pgl import graph_wrapper
 from pgl import graph