Client icons: Tigase: add Stork IM, Beagle IM, Siskin IM and default Tigase server client Multi User Chat

Author: stokito

client_icons.txt

@@ -80,7 +80,7 @@ strophe-api strophe
 swift swift
 talkonaut talkonaut
 telepathy telepathy,empathy
-tigase tigase
+tigase tigase,stork,beagle,siskin,multi user chat
 tkabber tkabber
 trillian trillian
 uwpx uwpx