Added @dimebrain's patch for handling HTTP headers restricted by .NET
Added @dimebrain's patch for handling HTTP headers restricted by .NET

devinrader/RestSharpRTExperimental,IsCoolEntertainment/unity-restsharp,jiangzm/RestSharp,Haacked/RestSharp,who/RestSharp,KraigM/RestSharp,mwereda/RestSharp,dyh333/RestSharp,Haacked/RestSharp,haithemaraissia/RestSharp,kouweizhong/RestSharp,paulcbetts/RestSharp,amccarter/RestSharp,jmartin84/RestSharp,wparad/RestSharp,dgreenbean/RestSharp,cnascimento/RestSharp,eamonwoortman/RestSharp.Unity,PKRoma/RestSharp,chengxiaole/RestSharp,dmgandini/RestSharp,IsCoolEntertainment/unity-restsharp,rucila/RestSharp,rivy/RestSharp,periface/RestSharp,lydonchandra/RestSharp,jmartin84/RestSharp,RestSharp-resurrected/RestSharp,benfo/RestSharp,uQr/RestSharp,mattwalden/RestSharp,mcintyre321/RestSharp-.NET-2.0-Fork,felipegtx/RestSharp,fmmendo/RestSharp,SaltyDH/RestSharp,huoxudong125/RestSharp,devinrader/RestSharpRTExperimental,restsharp/RestSharp,mattleibow/RestSharp,mcintyre321/RestSharp-.NET-2.0-Fork,paulcbetts/RestSharp,wparad/RestSharp