Dota 2 Update - December 2nd, 2014

[siosios]

- Fixed some Courier models not being visible
- Fixed some Courier particles not being visible after the courier died and respawned
- Fixed effigies sometimes drawing in full color
- Fixed Control Groups not saving across sessions
- Fixed Control Groups containing Techies' Remote Mines sometimes selecting all Remote Mines
- Fixed bug causing games discarded by early abandonments to be erroneously listed in match history

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