command_line support (#18)

* Update wrapper.py

* entry points cli

* Suppress the urllib2/3 Exception

* rm cli code, will create a new cli.py file

* Create cli.py

* update cli entry pts

* Update cli.py

* Update cli.py

* import print_function

* Update cli.py

* Update cli.py

* Delete pypi_uploader.sh

* resolve conflicts with the master

* update the test ; resolve the conflicts

* decrease code complexity

* cli method changed to main

* get is not for just local usage

* get method should be available from interface

* get is used in the interface

* Update cli.py

setup.py

@@ -42,6 +42,11 @@ setup(
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: Implementation :: CPython',
         ],
+    entry_points={
+        'console_scripts': [
+            'waybackpy = waybackpy.cli:main'
+        ]
+    },
     project_urls={
         'Documentation': 'https://waybackpy.readthedocs.io',
         'Source': 'https://github.com/akamhy/waybackpy',