s2prot v1.5.0

Changes and new features:

• Added support for all replays up to the latest.
• Fixed Details.Difficulty() (see aa51605)
• Added new depot URLs introduced in 5.0.5 (see eb80509)
• Added UserInitData.MMR(), fix MetaPlayer.PlayerID()
• Added optional outfile command line flag for dumping result to a file (see 5bd3a1f)
• Other minor fixes and improvements.