January 30, 2013 Patch (Test)

{{Patch layout
 * game = test
 * sort = 2013-01-30
 * source = http://dev.dota2.com/showthread.php?t=71652
 * source-title = Update Notes - January 30, 2013
 * before = January 24, 2013 Patch (Test)
 * after = January 31, 2013 Patch (Test)
 * diff-1 = January 30, 2013 Patch (Test)/plain
 * notes =

Gameplay

 * Fixed how magic damage is amplified when there are multiple sources of bonuses.
 * Fixed healing never resetting.
 * Tightened selection area of Eidolons to make picking individual units easier when they clump
 * Fixed not slowing magic immune units.
 * now properly trails invisible units.
 * Fixed various properties of illusions being incorrect.
 * Fixed working on illusions of Tiny.
 * Fixed Roshan decreasing charges.
 * Fixed not restoring its layers independently of one another.
 * Fixed damage not leveling properly, damaging magic immune units, and having incorrect chance to proc.
 * Fixed a bug with kill credit and illusions.
 * Fixed Roshan no longer casting Slam to slow and damage nearby units.
 * Fixed Roshan decreasing charges.
 * Fixed not restoring its layers independently of one another.
 * Fixed damage not leveling properly, damaging magic immune units, and having incorrect chance to proc.
 * Fixed a bug with kill credit and illusions.
 * Fixed Roshan no longer casting Slam to slow and damage nearby units.
 * Fixed a bug with kill credit and illusions.
 * Fixed Roshan no longer casting Slam to slow and damage nearby units.

UI

 * The Smooth Drag option now works for anyone that's spectating (whether through DotaTV or as a broadcaster).
 * Reduced waiting time in hero picker during All Random to 10 seconds.
 * Reworked how your personal hero performance is done on your profile page (provide feedback here http://dev.dota2.com/forumdisplay.php?f=431).
 * Added preview for summoned items like the panda and watcher golem to store and backpack.
 * Added the ability to filter out empty teams from the team list.

Bots

 * Fixed some incorrect timing calculations that were causing bots to miss some last hits.
 * Fixed Practice vs Bots not properly selecting the nearest server.
 * Fixed bot to know about the true range of.
 * Fixed bots thrashing selling a situational item (dust, wards, TP scroll) to purchase another situational item.

WEBAPI
}}
 * Added Captain's Mode Picks and Bans.
 * Added ability upgrade order and times to each player.
 * Added inventory for additional units ('s Spirit Bear).
 * Added an API for getting match details in the order they were recorded.