Add missing resources

The files spawn.yml and spout.yml are missing in the JAR.
This leads to SEVERE errors when loading the plugin for the first time:

    2013-06-19 02:20:07 [SEVERE] Could not find spout.yml, creating new one...
    2013-06-19 02:20:07 [SEVERE] Failed to load config from JAR
    2013-06-19 02:22:51 [SEVERE] Could not find spawn.yml, creating new one...
    2013-06-19 02:22:51 [SEVERE] Failed to load config from JAR