Malmo

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Fixes for MacOS stability problems.

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New: Now possible for agent to select the Minecraft client's command port using
an additional ClientInfo constructor when static port allocation is required.
Fix: Replaced XSD schema C++ generation in Malmo Agent which removes dependency on
CodeSynthesis XSD. On Windows that required the Visual Studio 2013 for debug builds.
New: C is now built on Windows using modern CMake.
Chg: Removed support for Mono.
Chg: Removed support for Torch.
Chg: Removed Support for Lua.
New: Support building Malmo as a Python (native) wheel.
New: Exposed ClientPool clients C++ vector member as Python iterable.
Chg: Timeouts added to startMission and other agent to Minecraft client communications.

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New: Can now record video streams as individual frames rather than video.
Fix: Many fixes to recording, tarring, etc - improved stability.
New: "Human" action space and observations, for tighter human-in-the-loop scenarios.
New: Titles and subtitles are now returned as part of the chat observation.
New: [Stability] ObservationFromSystem to return stats on Minecraft's health (eg render/server/client ticks per second)
New: [Stability] Option to kill Minecraft clients; command-line switch for launchClient to replace clients when killed.
New: DrawSign allows signposts to be drawn with specific text.
New: 'includeNBT' flag for ObservationFromRay, to return JSON NBTTagCompound for tile entities.
New: 'decision_tree_test.py' to test signs/NBTTagCompound.
New: 'braitenberg_simulation.py' to test luminance video producer (and for fun)
New: 'mouse_steering_test.py' to test human action space
New: Dockerfiles for automated building (Linux only, so far)
Fix: Integration tests can now be run headless - should be reliable (no false negatives)

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New: Samples now compatible with Python 2 and 3
New: Added luminance, 32bpp depth-map and colour-map video producers
New: Support for containers - drawing them, transferring inventory, observation producers etc

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New: UPGRADED TO LATEST MC/FORGE
Breaking: AllowSpawning/AllowedMobs now affects mob_spawners
Breaking: "Minecart" entity renamed to "MinecartRideable"
New: Now includes all mobs up to Minecraft 1.11, and "mob_zoo.py" sample
New: Added new blocktypes and items up to Minecraft 1.11
New: Added support for drawing tuned note blocks and "note_block_test.py" sample

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New: ObservationFromRay now returns distance.
New: Added socket logging code to Mod, available in Mod UI.
New: Added logging code to platform, available through Malmo API.
New: startMission now provides more error details in exceptions; multi-agent samples hardened by using this.
New: ObservationFromNearbyEntities now returns entity life.
New: RewardForDamagingEntity plus sample. (537)