Fix small issues, improve error handling and documentation

client.py

@@ -4,6 +4,7 @@ import logging
 import sys
 
 from client import command as cmd
+from httplib.exceptions import UnhandledHTTPCode
 
 
 def main():
@@ -15,7 +16,7 @@ def main():
 
     arguments = parser.parse_args()
 
-    logging.basicConfig(level=logging.ERROR - (10 * arguments.verbose), format="[%(levelname)s] %(message)s")
+    logging.basicConfig(level=logging.INFO - (10 * arguments.verbose), format="[%(levelname)s] %(message)s")
     logging.debug("Arguments: %s", arguments)
 
     command = cmd.create(arguments.command, arguments.URI, arguments.port)
@@ -24,7 +25,10 @@ def main():
 
 try:
     main()
+except UnhandledHTTPCode as e:
+    print(f"[{e.status_code}] {e.cause}:\r\n{e.headers}")
+    sys.exit(2)
 except Exception as e:
     print("[ABRT] Internal error: " + str(e), file=sys.stderr)
     logging.debug("Internal error", exc_info=e)
-    sys.exit(70)
+    sys.exit(1)