EXT-5552 Linux viewer running out of address space, crashing frequently and untracably

Yes, we were really hitting 3GB of address space.  And quickly.  Because we keep ~645 fonts mmap()d on a typical Linux system.  Switch to a libfreetype that doesn't mmap().  This is lower risk than fixing the font system right now...

install.xml

@@ -436,9 +436,9 @@
           <key>linux</key>
           <map>
             <key>md5sum</key>
-            <string>978ad7c67fe4a2419bfc841e2956ff9f</string>
+            <string>454c3d951d5c20bbf3f0f81cf3c9ecbc</string>
             <key>url</key>
-            <uri>http://s3.amazonaws.com/viewer-source-downloads/install_pkgs/freetype-2.3.9-linux-20090521c.tar.bz2</uri>
+            <uri>http://s3.amazonaws.com/viewer-source-downloads/install_pkgs/freetype-2.3.9-linux-2010-02-19-nommap.tar.bz2</uri>
           </map>
           <key>linux64</key>
           <map>