fix grey talent icons, and favicon

mmo-champion deleted old content :/ and added our favicon.
maybe we use css grayscale? or its usfull.
sample code for cross-bros grayscale: img.grayscale {
filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'&gt;&lt;filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale"); /* Firefox 10+, Firefox on Android /
filter: gray; / IE6-9 /
-webkit-filter: grayscale(100%); / Chrome 19+, Safari 6+, Safari 6+ iOS */
}