Dota 2 Update - March 5th 2015

[siosios]

* Added an upgraded wolf pup style to Crystal Maiden’s Frost Avalanche (existing Arcanas will be updated shortly)
- Unlocked by destroying 50 enemy wards
- Upgraded wolf pups have an alternate skin, and several new behaviors

* Dropping an item onto another item on the ground now properly places it where clicked
* Made various fixes to pathing
* Fixed a case where Winter's Curse didn't credit the kill properly
* Fixed autopause in league games having a countdown instead of being instant

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