Use setuptools_scm and add extras

Author: kotfu

setup.py

@@ -10,13 +10,13 @@
 with open(os.path.join(here, 'README.md'), encoding='utf-8') as f:
     long_description = f.read()
 
-VERSION='0.1.0'
-
 setuptools.setup(
     name='cmd2-myplugin',
-    version=VERSION,
+    use_scm_version=True,
+
     description='A template used to build plugins for cmd2',
     long_description=long_description,
+    long_description_content_type='text/markdown',
     keywords='cmd2 plugin',
 
     author='Kotfu',
@@ -27,7 +27,8 @@
     packages=['cmd2_myplugin'],
 
     python_requires='>=3.4',
-    install_requires=['cmd2 >= 0.9.3, <=2'],
+    install_requires=['cmd2 >= 0.9.4, <=2'],
+    setup_requires=['setuptools_scm']
 
     classifiers=[
         'Development Status :: 4 - Beta',
@@ -45,6 +46,7 @@
     # dependencies for development and testing
     # $ pip install -e .[dev]
     extras_require={
-        'dev': ['pytest']
+        'dev': ['setuptools_scm', 'pytest', 'codecov', 'pytest-cov',
+                'pylint', 'invoke', 'wheel', 'twine']
     },
 )