Moving icons COPYING file next to ours and Snowball's

COPYING.icons

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+The following works are licensed under a Creative Commons Attribution 3.0 Unported License.
+For more information, see: http://creativecommons.org/licenses/by/3.0/
+
+star-symbolic.svg
+unstarred-symbolic.svg
+    Star designed by SuperAtic LABS from The Noun Project
+    http://thenounproject.com/noun/star/#icon-No15362
+    http://thenounproject.com/noun/star/#icon-No15361
+
+archive-symbolic.svg
+    Inbox designed by Erik from The Noun Project
+    http://thenounproject.com/noun/inbox/#icon-No17098
+
+reply-symbolic.svg
+reply-all-symbolic.svg (derivative)
+forward-symbolic.svg (derivative)
+    Back designed by Anisha Varghese from The Noun Project
+    http://thenounproject.com/noun/back/#icon-No14792
+
+marker-symbolic.svg
+    Marker designed by factor[e] design initiative from The Noun Project
+    http://thenounproject.com/noun/marker/#icon-No18908
+
+inbox-symbolic.svg
+outbox-symbolic.svg (derivative)
+    Inbox designed by Edward Boatman from The Noun Project
+    http://thenounproject.com/noun/inbox/#icon-No406
+
+sent-symbolic.svg
+    Paper Airplane designed by George Vasjagin from The Noun Project
+    http://thenounproject.com/noun/paper-airplane/#icon-No12136
+
+document-symbolic.svg
+    Document designed by Edward Boatman from The Noun Project
+    http://thenounproject.com/noun/document/#icon-No453
+
+spam-symbolic.svg
+    Pig designed by aLf from The Noun Project
+    http://thenounproject.com/noun/pig/#icon-No5271
+
+close-symbolic.svg
+    Close designed by Icomatic from The Noun Project
+    http://thenounproject.com/noun/close/#icon-No18932
+
+
+The following work is public domain.
+
+tag-symbolic.svg
+    Tag designed by Ian Hamilton, 2012
+    http://thenounproject.com/noun/tag/#icon-No4018
+