* Adds configuration buttons for ffmpeg-output

* Large sequencer rewrite to support:
  - Audio-tracks, which are not completely loaded into memory (hdaudio) but
    kept on disk instead.
  - A dependency tree, that builds only the Imbufs, that are really needed
  - Cleaner sequencer code
  - Per instance data in sequencer plugins (without this, the Dynamic
    Noise Reduction plugin would be impossible)
  - A Luma Waveform display
  - A U/V scatter plot display
  - Memcache limiting in sequencer
  - Buttons changed according to the boosted framecount limit

source/blender/src/SConscript

@@ -5,7 +5,8 @@ Import ('env')
 
 sources = env.Glob('*.c')
 
-incs = ' #/intern/guardedalloc ../blenlib ../makesdna ../blenkernel'
+incs = ' #/intern/guardedalloc #/intern/memutil'
+incs += ' ../blenlib ../makesdna ../blenkernel'
 incs += ' ../include #/intern/bmfont ../imbuf ../render/extern/include'
 incs += ' #/intern/bsp/extern ../radiosity/extern/include'
 incs += ' #/intern/decimation/extern ../blenloader ../python'
@@ -31,6 +32,9 @@ if env['WITH_BF_QUICKTIME']==1:
     incs += ' ' + env['BF_QUICKTIME_INC']
     defs.append('WITH_QUICKTIME')
 
+if env['WITH_BF_FFMPEG'] == 1:
+    defs += ' WITH_FFMPEG'
+
 # TODO buildinfo
 if env['BF_BUILDINFO'] == 1:
     defs.append('NAN_BUILDINFO')