Dota 2 Update - February 21st 2017

* Fixed a bug where purchasing and selling items many times during strategy time could prevent item purchases later in the game.
* Fixed Reverse CM hero selection
* Fixed Astral Spirit blocking Hookshot
* Added like button to effigy panel
* Fixed Precision Aura malfunctioning when illusions arepresent
* Fixed some UI visual glitches on heroes with 5+ abilities
* Fixed a bug with previewing items with multiple styles.