Update capability names as they are named in IRCv3.2.
Update capability names as they are named in IRCv3.2.

Old names will be available for a while, then removed.
self-message is superseded by echo-message and will be removed in future
too.

BtbN/znc,markusj/znc,GLolol/znc,Mikaela/znc,Phansa/znc,DarthGandalf/znc,markusj/znc,BtbN/znc,dgw/znc,KielBNC/znc,kashike/znc,evilnet/znc,elyscape/znc,TuffLuck/znc,wolfy1339/znc,jreese/znc,badloop/znc,psychon/znc,Zarthus/znc,TuffLuck/znc,psychon/znc,jpnurmi/znc,Adam-/znc,anthonyryan1/znc,znc/znc,evilnet/znc,psychon/znc,jreese/znc,BtbN/znc,Mkaysi/znc,GLolol/znc,wolfy1339/znc,Adam-/znc,aarondunlap/znc,elyscape/znc,GLolol/znc,KielBNC/znc,Mkaysi/znc,KielBNC/znc,TuffLuck/znc,Kriechi/znc,aarondunlap/znc,dgw/znc,markusj/znc,kashike/znc,Mikaela/znc,markusj/znc,znc/znc,DarthGandalf/znc,aarondunlap/znc,reedloden/znc,psychon/znc,Mikaela/znc,znc/znc,TuffLuck/znc,TuffLuck/znc,BtbN/znc,jpnurmi/znc,Mikaela/znc,jreese/znc,jpnurmi/znc,Zarthus/znc,jpnurmi/znc,Hasimir/znc,evilnet/znc,GLolol/znc,dgw/znc,aarondunlap/znc,Adam-/znc,badloop/znc,Mkaysi/znc,reedloden/znc,jpnurmi/znc,Adam-/znc,GLolol/znc,anthonyryan1/znc,elyscape/znc,markusj/znc,evilnet/znc,Zarthus/znc,kashike/znc,DarthGandalf/znc,znc/znc,reedloden/znc,reedloden/znc,Adam-/znc,badloop/znc,dgw/znc,Adam-/znc,Kriechi/znc,badloop/znc,KielBNC/znc,aarondunlap/znc,Mikaela/znc,Phansa/znc,DarthGandalf/znc,Mkaysi/znc,wolfy1339/znc,Kriechi/znc,znc/znc,Hasimir/znc,TuffLuck/znc,psychon/znc,Phansa/znc,Hasimir/znc,Zarthus/znc,kashike/znc,wolfy1339/znc,Adam-/znc,Mikaela/znc,elyscape/znc,Hasimir/znc,Kriechi/znc,aarondunlap/znc,jpnurmi/znc,Hasimir/znc,Zarthus/znc,wolfy1339/znc,kashike/znc,elyscape/znc,dgw/znc,evilnet/znc,DarthGandalf/znc,Phansa/znc,aarondunlap/znc,Mkaysi/znc,Hasimir/znc,badloop/znc,badloop/znc,Phansa/znc,jreese/znc,znc/znc,KielBNC/znc,badloop/znc,anthonyryan1/znc,anthonyryan1/znc,DarthGandalf/znc,BtbN/znc,GLolol/znc,psychon/znc,elyscape/znc,Mkaysi/znc,Zarthus/znc,wolfy1339/znc,Phansa/znc,Hasimir/znc,Mikaela/znc,Kriechi/znc,KielBNC/znc,anthonyryan1/znc,anthonyryan1/znc,jpnurmi/znc,jreese/znc,BtbN/znc,Mkaysi/znc,reedloden/znc,jreese/znc,evilnet/znc,TuffLuck/znc,kashike/znc,Kriechi/znc,dgw/znc,anthonyryan1/znc,reedloden/znc,markusj/znc