Bug 955366 - Use Maps and Sets in IRC code, create a NormalizedMap object. r=aleth,florian
Bug 955366 - Use Maps and Sets in IRC code, convert buddies object. r=aleth.
Bug 955366 - Use Maps and Sets in IRC code, convert whois information. r=aleth
Bug 955366 - Use Maps and Sets in IRC code, convert modes. r=aleth
Bug 955366 - Use Maps and Sets in IRC code, convert _participants. r=florian
Bug 955328 - Use Javascript default parameters where applicable: IRC part, r=aleth.