Bump version to 1.18.2 (#615)

Author: yangaws

CHANGELOG.rst

@@ -2,9 +2,8 @@
 CHANGELOG
 =========
 
-
-1.18.2.dev
-==========
+1.18.2
+======
 
 * enhancement: Include SageMaker Notebook Instance version number in boto3 user agent, if available.
 * feature: Support for updating existing endpoint

setup.py

@@ -33,7 +33,7 @@ def read(fname):
     required_packages.append('enum34>=1.1.6')
 
 setup(name="sagemaker",
-      version='1.18.1',
+      version='1.18.2',
       description="Open source library for training and deploying models on Amazon SageMaker.",
       packages=find_packages('src'),
       package_dir={'': 'src'},