Rename "ku" to "ku_am", add "ku_iq" (bug #19853).

For Iraq, we are assuming its the same Arabic orthography used in Iran.

According to Ethnologue, Kurdish is written in Cyrillic in Armenia:
http://www.ethnologue.com/show_language.asp?code=kmr

Turkey and Syria need more research.

fc-lang/ku_am.orth

@@ -1,5 +1,5 @@
 #
-# fontconfig/fc-lang/ku.orth
+# fontconfig/fc-lang/ku_am.orth
 #
 # Copyright © 2002 Keith Packard
 #
@@ -26,7 +26,7 @@
 #
 # http://titus.uni-frankfurt.de/unicode/alphabet/nslatest.htm
 #
-# Kurdish (KU)
+# Kurdish in Armenia (ku-AM)
 #
 0410
 0411

fc-lang/ku_iq.orth

@@ -0,0 +1,27 @@
+#
+# fontconfig/fc-lang/ku_iq.orth
+#
+# Copyright © 2009 Roozbeh Pournader
+#
+# Permission to use, copy, modify, distribute, and sell this software and its
+# documentation for any purpose is hereby granted without fee, provided that
+# the above copyright notice appear in all copies and that both that
+# copyright notice and this permission notice appear in supporting
+# documentation, and that the name of the author(s) not be used in
+# advertising or publicity pertaining to distribution of the software without
+# specific, written prior permission.  The author(s) make(s) no
+# representations about the suitability of this software for any purpose.  It
+# is provided "as is" without express or implied warranty.
+#
+# THE AUTHOR(S) DISCLAIM(S) ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+# EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+# DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+# TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+# PERFORMANCE OF THIS SOFTWARE.
+#
+# Kurdish in Iraq (ku-IQ)
+#
+# Assuming Iraqi Kurdish uses the same orthography as Iranian Kurdish
+include ku_ir.orth