Update boost to 1.47.0 and, with glibc, build more boost libraries.

Makefile

 # Copyright (c) 2011 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 #
 # Makefile
 #
 # usage: 'make [package]'
 #
 # This makefile builds all of the Native Client packages listed below
 # in $(PACKAGES). Each package has a dependency on its own sentinel
@@ skipping 86 matching lines @@
      libraries/freetype-2.1.10 \
      libraries/fontconfig-2.7.3 \
      libraries/agg-2.5 \
      libraries/cairo-1.8.8 \
      libraries/ImageMagick-6.5.4-10 \
      libraries/ffmpeg-0.5 \
      libraries/Mesa-7.6 \
      libraries/libmodplug-0.8.7 \
      libraries/OpenSceneGraph-2.9.7 \
      libraries/cfitsio \
-     libraries/boost_1_43_0 \
+     libraries/boost_1_47_0 \
      libraries/protobuf-2.3.0 \
      libraries/dreadthread
 
 ifeq ($(NACL_GLIBC), 1)
   LIBRARIES += \
       libraries/SDL_net-1.2.7 \
       libraries/glib-2.28.8 \
       libraries/pango-1.29.3
 endif
 
@@ skipping 46 matching lines @@
 $(SENT)/examples/games/scummvm-1.2.1: \
     libraries/nacl-mounts libraries/SDL-1.2.14 libraries/libvorbis-1.2.3
 $(SENT)/examples/systems/bochs-2.4.6: \
     libraries/nacl-mounts libraries/SDL-1.2.14
 $(SENT)/libraries/glib-2.28.8: libraries/zlib-1.2.3
 $(SENT)/libraries/pango-1.29.3: libraries/glib-2.28.8 libraries/cairo-1.8.8
 $(SENT)/libraries/SDL_mixer-1.2.11: libraries/SDL-1.2.14 libraries/libogg-1.1.4 libraries/libvorbis-1.2.3
 $(SENT)/libraries/SDL_image-1.2.10: libraries/SDL-1.2.14 libraries/libpng-1.2.40
 $(SENT)/libraries/SDL_net-1.2.7: libraries/SDL-1.2.14
 $(SENT)/libraries/SDL_ttf-2.0.10: libraries/SDL-1.2.14 libraries/freetype-2.1.10
+$(SENT)/libraries/boost_1_47_0: libraries/zlib-1.2.3 libraries/bzip2-1.0.6
 
 # shortcuts
 nacl-mounts: libraries/nacl-mounts ;
 cfitsio: libraries/cfitsio ;
 tinyxml: libraries/tinyxml ;
 sdl: libraries/SDL-1.2.14 ;
 sdl_mixer: libraries/SDL_mixer-1.2.11 ;
 sdl_image: libraries/SDL_image-1.2.10 ;
 sdl_net: libraries/SDL_net-1.2.7 ;
 sdl_ttf: libraries/SDL_ttf-2.0.10 ;
@@ skipping 23 matching lines @@
 gsl: libraries/gsl-1.9 ;
 freetype: libraries/freetype-2.1.10 ;
 fontconfig: libraries/fontconfig-2.7.3 ;
 agg: libraries/agg-2.5 ;
 cairo: libraries/cairo-1.8.8 ;
 imagemagick: libraries/ImageMagick-6.5.4-10 ;
 ffmpeg: libraries/ffmpeg-0.5 ;
 mesa: libraries/Mesa-7.6 ;
 modplug: libraries/libmodplug-0.8.7 ;
 openscenegraph: libraries/OpenSceneGraph-2.9.7 ;
-boost: libraries/boost_1_43_0 ;
+boost: libraries/boost_1_47_0 ;
 protobuf: libraries/protobuf-2.3.0 ;
 pango: libraries/pango-1.29.3 ;
 nethack: examples/games/nethack-3.4.3 ;
 scummvm: examples/games/scummvm-1.2.1 ;
 bochs: examples/systems/bochs-2.4.6 ;