bump version to 1.5 (#389)

Author: mShan0

setup.py

@@ -29,7 +29,7 @@
 
 setup(
     name='mssql-django',
-    version='1.4.2',
+    version='1.5',
     description='Django backend for Microsoft SQL Server',
     long_description=long_description,
     long_description_content_type='text/markdown',