core: Don't create logger names with "ext."
core: Don't create logger names with "ext."

Things in ext shouldn't have to have "ext" prefixed on their name.
We should probably check if they actually have it because they're in
the ext directory, but whatever.

kavitshah8/SDNDeveloper,noxrepo/pox,VamsikrishnaNallabothu/pox,kulawczukmarcin/mypox,jacobq/csci5221-viro-project,kavitshah8/SDNDeveloper,PrincetonUniversity/pox,MurphyMc/pox,diogommartins/pox,carlye566/IoT-POX,jacobq/csci5221-viro-project,kpengboy/pox-exercise,diogommartins/pox,andiwundsam/_of_normalize,xAKLx/pox,PrincetonUniversity/pox,MurphyMc/pox,kulawczukmarcin/mypox,waltznetworks/pox,kulawczukmarcin/mypox,noxrepo/pox,kulawczukmarcin/mypox,andiwundsam/_of_normalize,waltznetworks/pox,adusia/pox,PrincetonUniversity/pox,VamsikrishnaNallabothu/pox,noxrepo/pox,adusia/pox,kulawczukmarcin/mypox,noxrepo/pox,MurphyMc/pox,VamsikrishnaNallabothu/pox,xAKLx/pox,denovogroup/pox,chenyuntc/pox,carlye566/IoT-POX,adusia/pox,diogommartins/pox,kpengboy/pox-exercise,denovogroup/pox,adusia/pox,VamsikrishnaNallabothu/pox,pthien92/sdn,kavitshah8/SDNDeveloper,carlye566/IoT-POX,PrincetonUniversity/pox,kpengboy/pox-exercise,chenyuntc/pox,waltznetworks/pox,denovogroup/pox,xAKLx/pox,carlye566/IoT-POX,jacobq/csci5221-viro-project,jacobq/csci5221-viro-project,xAKLx/pox,andiwundsam/_of_normalize,diogommartins/pox,kpengboy/pox-exercise,xAKLx/pox,carlye566/IoT-POX,pthien92/sdn,MurphyMc/pox,adusia/pox,kavitshah8/SDNDeveloper,pthien92/sdn,pthien92/sdn,denovogroup/pox,andiwundsam/_of_normalize,MurphyMc/pox,VamsikrishnaNallabothu/pox,jacobq/csci5221-viro-project,diogommartins/pox,kpengboy/pox-exercise,chenyuntc/pox,pthien92/sdn,waltznetworks/pox,chenyuntc/pox,chenyuntc/pox,PrincetonUniversity/pox,waltznetworks/pox,denovogroup/pox