TwitchAPI - fixed for client ID requirement

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--Changelog--
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--Version 1.1.1
--1. Twitch API now requires client ID. Call init() with your client ID before calling any other functions (i.e; "twitchapi.init('GkdfA0S9f83F0')"
--2. Refactored some functions
--3. API errors if used without client ID set.
--Edits by MineRobber
--Version 1.1.0
--1. Fixed live() crash bug!
--2. Made file smaller, to save on disk space using init()!
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--Changelog--
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local clientID = "NONEGIVEN"
function init(clientid) clientID = clientid end
function _init(streamid)
  if clientID=="NONEGIVEN" then error("TwitchAPI: requires client ID",0) end
  isjsoninstalled()
  os.loadAPI("json")
  str = http.get("https://api.twitch.tv/kraken/channels/"..streamid.."/follows?limit=1&client_id="..clientID).readAll()
  obj = json.decode(str)
  if obj.error then error("TwitchAPI: "..obj.error..": "..obj.message,0) end
  follower = obj.follows[1].user.name
  followcount = #obj.follows
  str = http.get("https://api.twitch.tv/kraken/streams/"..streamid.."?client_id="..clientID).readAll()
  obj = json.decode(str)
  stream = obj.stream
  return follower, followcount, stream
end
function isjsoninstalled()
  if fs.exists("json") then
    return true
  else
    print("JSON API Not found! Downloading...")
    resp = http.get("http://pastebin.com/raw.php?i=HAve6asF")
    if resp then
      handler = io.open("json","w")
      handler:write(resp.readAll())
      handler:close()
    end
      print("Finished downloading JSON API!")
      return true
    end
  end

function live(streamid,colorLive,colorNotLive)
  isjsoninstalled()
  os.loadAPI("json")
  if checkLive(streamid) then
    term.setTextColor(colorLive)
    print(streamid.." is live!")
    term.setTextColor(colors.white)
  else
    term.setTextColor(colorNotLive)
    print(streamid.." is not live!")
    term.setTextColor(colors.white)
  end
end
function checkLive(streamid)
  lastfollow, fc, stream = _init(streamid)
  if stream ~= null then
    return true
  else
    return false
  end
end
function lastFollower(streamid)
  lastfollow, fc, stream = _init(streamid)
  return lastfollow
end
function followerCount(streamid)
  isjsoninstalled()
  os.loadAPI("json")
  lastfollow, fc, stream = _init(streamid)
  return fc
end
function viewerCount(streamid)
  lastfollow, fc, stream = _init(streamid)
  if not stream then return 0 end
  return stream.viewers
end
function viewCount(streamid)
  lastfollow, stream = _init(streamid)
  return stream.channel.views
end