Accessible IPTV Client for iOS 0.1.3

• No more long freeze when the app opens, comes back into focus, or switches between Live TV, Movies and Series. Two jobs ran on the main thread, and both grew with the size of the list: reading the guide's channel index before the first frame, and working out the entry count beside every group. The index is now read while the list loads, and the counts are one pass, off the main thread.