Added a Namecoin id input in settings
Added format check for Namecoin id
Used argparse in migration script
Reduce threading
Check for unconnected Bitmessage API
Updated migration script according to #962
Merge pull request #888 from hoffmabc/fix-threading

Reduce threading
Merge pull request #957 from lolosk/namecoin

Αdded a Namecoin id input in settings