Fix Emacs 23.4.50 light font weight issue and make it able to display non-western chars

gistfile1.diff

diff --git a/src/nsfont.m b/src/nsfont.m
index c0bea2e..a5fc570 100644
--- a/src/nsfont.m
+++ b/src/nsfont.m
@@ -560,10 +560,7 @@ ns_findfonts (Lisp_Object font_spec, BOOL isMatch)
     if (isMatch)
  [fkeys removeObject: NSFontFamilyAttribute];
 
-    if ([fkeys count] > 0)
-      matchingDescs = [fdesc matchingFontDescriptorsWithMandatoryKeys: fkeys];
-    else
-      matchingDescs = [NSMutableArray array];
+    matchingDescs = [fdesc matchingFontDescriptorsWithMandatoryKeys: fkeys];
 
     if (NSFONT_TRACE)
 	NSLog(@"Got desc %@ and found %d matching fonts from it: ", fdesc,
@@ -1240,7 +1237,6 @@ nsfont_draw (struct glyph_string *s, int from, int to, int x, int y,
     else
       CGContextSetShouldAntialias (gcontext, 1);
 
-    CGContextSetShouldSmoothFonts (gcontext, NO);
     CGContextSetTextMatrix (gcontext, fliptf);
 
     if (bgCol != nil)