!274 Change version to 1.5.0

Merge pull request !274 from emmmmtang/r1.5

setup.py

@@ -21,7 +21,7 @@ from setuptools import setup
 from setuptools.command.egg_info import egg_info
 from setuptools.command.build_py import build_py
 
-version = '1.5.0-rc1'
+version = '1.5.0'
 cur_dir = os.path.dirname(os.path.realpath(__file__))
 pkg_dir = os.path.join(cur_dir, 'build')