Large bundle of OS X tweaks by Eric P. (basis of the 10.9-compatible

pre-release made in Dec. 2013):
 * Fix OS X 10.9 issue of current directory set by Finder
   to something else than folder where app bundle resides.
 * Some Mac OS X build / project changes & updates.
 * Adjustments to Mac OS X fontconfig config file, to avoid warnings
   and make things more robust.
 * Updates to some #include's to catch up with newer library revisions.
 * Tweaks to pixel read/write on Apple.
 * Introduction of 'intprt_t' casting to avoid warnings on x64.
 * Some additional debugging output.
 * Logging stderr & stdout to /tmp/tuxpaint.log
Untested (I don't have a Mac!)

src/macosx_print.m

@@ -305,10 +305,10 @@ const char* SurfacePrint( SDL_Surface *surface, int showDialog )
     
 	[ image setSize:imageSize ];
     [ printView setImage:image ];
-	
+        
     // run printing
     printOperation = [ NSPrintOperation printOperationWithView:printView printInfo:printInfo ];
-    [ printOperation setShowPanels:showDialog ];
+    [ printOperation setShowsPrintPanel:showDialog ];   //EP replaced setShowPanels by setShowsPrintPanel
     
     macosx.cocoaKeystrokes = 1;
     delegate = [ [ [ ModalDelegate alloc ] init ] autorelease ];