Fix remote packet capture and make sure packet capture is stopped when deleting an NIO. Fixes https://github.com/GNS3/gns3-gui/issues/2753

gns3server/version.py

@@ -23,7 +23,7 @@
 # or negative for a release candidate or beta (after the base version
 # number has been incremented)
 
-__version__ = "2.2.0dev8"
+__version__ = "2.2.0dev9"
 __version_info__ = (2, 2, 0, 99)
 
 # If it's a git checkout try to add the commit