Add mime-type for SVG to lighttpd.conf for run_webkit_tests....

webkit/tools/layout_tests/layout_package/lighttpd.conf

 server.tag                  = "LightTPD/1.4.19 (Win32)"
 server.modules              = ( "mod_accesslog",
                                 "mod_alias",
                                 "mod_cgi",
                                 "mod_rewrite" )
 
 # default document root required
 server.document-root = "."
 
 # files to check for if .../ is requested
 index-file.names            = ( "index.php", "index.pl", "index.cgi",
                                 "index.html", "index.htm", "default.htm" )
 # mimetype mapping
 mimetype.assign             = (
   ".gif"          =>      "image/gif",
   ".jpg"          =>      "image/jpeg",
   ".jpeg"         =>      "image/jpeg",
   ".png"          =>      "image/png",
+  ".svg"          =>      "image/svg+xml",
   ".css"          =>      "text/css",
   ".html"         =>      "text/html",
   ".htm"          =>      "text/html",
   ".xhtml"        =>      "application/xhtml+xml",
   ".js"           =>      "text/javascript",
   ".log"          =>      "text/plain",
   ".conf"         =>      "text/plain",
   ".text"         =>      "text/plain",
   ".txt"          =>      "text/plain",
   ".dtd"          =>      "text/xml",
@@ skipping 37 matching lines @@
   mimetype.assign = (
     ".txt" => "text/plain; charset=windows-1251",
     ".xml" => "text/xml; charset=windows-1251"
   )
 }
 $HTTP["url"] =~ "^/xmlhttprequest/resources/reply4.txt" {
   mimetype.assign = ( ".txt" => "text/plain; charset=koi8-r" )
 }
 
 # Autogenerated test-specific config follows.