kdig: add -b option support + fix key_params manipulation

refs @2137

Change-Id: I93995c3b308995c00b1bbbef95e1b74fc4c47a19
kdig: improve info messages

refs #2137

Change-Id: Ic433b8442634171c41defa5e74babc2d745b01bb
kdig: add NSID query support

refs #2137

Change-Id: Iaca6cb6f9d4e99a0a9b399d0206cc9773ae6c285