version: use standard Python's dev0 instead of Libervia specific D for dev version

setup.py

@@ -73,7 +73,7 @@ DBUS_DIR = 'dbus-1/services'
 DBUS_FILE = 'misc/org.libervia.Libervia.service'
 with open(os.path.join(DIR_NAME, 'VERSION')) as f:
     VERSION = f.read().strip()
-is_dev_version = VERSION.endswith('D')
+is_dev_version = VERSION.endswith('.dev0')
 if is_dev_version:
     install_requires.append("setuptools_scm")
 
@@ -81,7 +81,7 @@ if is_dev_version:
 def sat_dev_version():
     """Use mercurial data to compute version"""
     def version_scheme(version):
-        return VERSION.replace('D', '.dev0')
+        return VERSION
 
     def local_scheme(version):
         return "+{rev}.{distance}".format(