Send a nick change to clients connecting with a different nick
Send a nick change to clients connecting with a different nick

Before we was hoping that the client was using the nick from 001, not all
clients supported this.

Closes #170

Kriechi/znc,anthonyryan1/znc,Phansa/znc,Zarthus/znc,znc/znc,Mikaela/znc,KielBNC/znc,evilnet/znc,psychon/znc,DarthGandalf/znc,ollie27/znc,jreese/znc,Phansa/znc,Kriechi/nobnc,withinsoft/znc,KielBNC/znc,Hasimir/znc,withinsoft/znc,BtbN/znc,jpnurmi/znc,KiNgMaR/znc,trisk/znc,YourBNC/znc,reedloden/znc,anthonyryan1/znc,Hasimir/znc,aarondunlap/znc,Mikaela/znc,trisk/znc,withinsoft/znc,TuffLuck/znc,jantman/znc,elyscape/znc,TingPing/znc,kashike/znc,jreese/znc,aarondunlap/znc,trisk/znc,dgw/znc,evilnet/znc,znc/znc,Adam-/znc,anthonyryan1/znc,trisk/znc,Mikaela/znc,badloop/znc,evilnet/znc,Phansa/znc,Mkaysi/znc,psychon/znc,jpnurmi/znc,KielBNC/znc,KiNgMaR/znc,badloop/znc,jantman/znc,YourBNC/znc,markusj/znc,Phansa/znc,KielBNC/znc,Mkaysi/znc,Zarthus/znc,BtbN/znc,withinsoft/znc,markusj/znc,DarthGandalf/znc,Hasimir/znc,TingPing/znc,kashike/znc,aarondunlap/znc,dgw/znc,GLolol/znc,elyscape/znc,reedloden/znc,reedloden/znc,elyscape/znc,Phansa/znc,Kriechi/znc,markusj/znc,kashike/znc,Zarthus/znc,ollie27/znc,Mkaysi/znc,wolfy1339/znc,znc/znc,ollie27/znc,TuffLuck/znc,Zarthus/znc,TingPing/znc,KiNgMaR/znc,evilnet/znc,GLolol/znc,Zarthus/znc,DarthGandalf/znc,aarondunlap/znc,psychon/znc,Adam-/znc,jreese/znc,Hasimir/znc,znc/znc,dgw/znc,TuffLuck/znc,ollie27/znc,Mkaysi/znc,reedloden/znc,dgw/znc,elyscape/znc,kashike/znc,wolfy1339/znc,withinsoft/znc,jreese/znc,jantman/znc,Phansa/znc,BtbN/znc,wolfy1339/znc,Hasimir/znc,Adam-/znc,KielBNC/znc,Adam-/znc,trisk/znc,wolfy1339/znc,Adam-/znc,anthonyryan1/znc,KiNgMaR/znc,znc/znc,Mkaysi/znc,jpnurmi/znc,jpnurmi/znc,wolfy1339/znc,GLolol/znc,Kriechi/nobnc,Hasimir/znc,znc/znc,Mikaela/znc,ollie27/znc,badloop/znc,reedloden/znc,dgw/znc,markusj/znc,badloop/znc,aarondunlap/znc,psychon/znc,ollie27/znc,trisk/znc,Mkaysi/znc,Kriechi/znc,TuffLuck/znc,TingPing/znc,badloop/znc,Zarthus/znc,reedloden/znc,Kriechi/znc,Adam-/znc,KielBNC/znc,jpnurmi/znc,YourBNC/znc,Adam-/znc,anthonyryan1/znc,badloop/znc,aarondunlap/znc,Kriechi/znc,badloop/znc,jantman/znc,jpnurmi/znc,jreese/znc,kashike/znc,dgw/znc,markusj/znc,GLolol/znc,jantman/znc,psychon/znc,Mikaela/znc,jpnurmi/znc,wolfy1339/znc,GLolol/znc,TingPing/znc,anthonyryan1/znc,TuffLuck/znc,markusj/znc,TingPing/znc,GLolol/znc,DarthGandalf/znc,DarthGandalf/znc,Mikaela/znc,Mikaela/znc,KiNgMaR/znc,KiNgMaR/znc,Kriechi/znc,anthonyryan1/znc,Mkaysi/znc,jreese/znc,BtbN/znc,DarthGandalf/znc,Kriechi/nobnc,TuffLuck/znc,YourBNC/znc,elyscape/znc,evilnet/znc,TuffLuck/znc,elyscape/znc,psychon/znc,YourBNC/znc,aarondunlap/znc,jantman/znc,BtbN/znc,YourBNC/znc,Hasimir/znc,withinsoft/znc,evilnet/znc,BtbN/znc,kashike/znc