Update .travis.yml
Update .travis.yml

Force install of mono
xversial/SteamBot,Moondarker/CSGOWinBig-SteamBot,Jessecar96/SteamBot,alanfort/CSGOWinBig-SteamBot,Alex-Nabu/CSGOWinBig-SteamBot,nuller1joe/SteamBot,Wendt9222/SteamBot-1,icodingforfood/SteamBot,martingabriel/SteamBot,niachris/SteamBotNew,tarun200897/SteamBot,stigping/SteamBot,alanfort/CSGOWinBig-SteamBot,wqbill/SteamBot,tarun200897/SteamBot,Schwehn42/SteamBot,avoak/SteamBot,wowzone/gamerpro,zigagrcar/SteamTradeOffersBot,stigping/SteamBot,MattrAus/SteamBot,23RDGit/CSGOWinBig-SteamBot,stackia/SteamBot,GAMELASTER/SteamBot,niachris/SteamBotNew,Schwehn42/SteamBot,JackHarknes/Bot1,trervorx/SteamBot,Banana23/Tryout,waylaidwanderer/SteamTradeOffersBot,Murzyneczka/CSGOWinBig-SteamBot,stackia/SteamBot,Banana23/Tryout,avoak/SteamBot,novasdream/SteamBot,zigagrcar/SteamTradeOffersBot,JackHarknes/Bot1,TheRod1990/SteamBot,JackHarknes/Bot1,wqbill/SteamBot,Wendt9222/SteamBot-1,MattrAus/SteamBot,fjch1997/SteamBot,novasdream/SteamBot,fjch1997/SteamBot,ztizzlegaming/CSGOWinBig-SteamBot,Bottswana/SteamBot,MadBender/SteamBot,BuzzyOG/CSGOWinBig-SteamBot,Alex-Nabu/CSGOWinBig-SteamBot,23RDGit/CSGOWinBig-SteamBot,ChalkyBrush/SteamBots,GoeGaming/SteamBot,StormReaper/SteamBot,ztizzlegaming/CSGOWinBig-SteamBot,BuzzyOG/CSGOWinBig-SteamBot,GAMELASTER/SteamBot,trervorx/SteamBot,GoeGaming/SteamBot,martingabriel/SteamBot,terryhau/SteamBot,ChalkyBrush/SteamBots,MadBender/SteamBot,icodingforfood/SteamBot,StormReaper/SteamBot,Murzyneczka/CSGOWinBig-SteamBot,BlueRaja/SteamBot,Moondarker/CSGOWinBig-SteamBot,Bottswana/SteamBot,nuller1joe/SteamBot,TheRod1990/SteamBot,wowzone/gamerpro,terryhau/SteamBot,xversial/SteamBot