libvpx: Pull from upstream

source/libvpx/third_party/nestegg/halloc/README

Index: source/libvpx/third_party/nestegg/halloc/README
===================================================================
--- source/libvpx/third_party/nestegg/halloc/README	(revision 278778)
+++ source/libvpx/third_party/nestegg/halloc/README	(working copy)
@@ -1,45 +0,0 @@
-halloc 1.2.1
-============
-      
-	Hierarchical memory heap interface - an extension to standard
-	malloc/free interface that simplifies tasks of memory disposal 
-	when allocated structures exhibit hierarchical properties.
-
-	http://swapped.cc/halloc
-=
-	To build libhalloc.a with GNU tools run
-		make
-
-	To install in /usr/include and /usr/lib
-		make install
-
-	To cleanup the build files 
-		make clean
-=
-	halloc-1.2.1
-		* fixed a double-free bug in _set_allocator() as per
-		  Matthew Gregan comments
-
-		* switched to using NULL instead of 0 where applicable
-
-	halloc-1.2.0
-		* added missing <string.h> include to halloc.c
-		
-		* improved standard compliance thanks to the feedback
-		  received from Stan Tobias. Two things were fixed -
-		  
-		- hblock_t structure no longer uses zero-sized 'data'
-		  array, which happened to be common, but non-standard
-		  extension; 
-		  
-		- secondly, added the code to test the behaviour of 
-		  realloc(ptr, 0). Standard allows it NOT to act as
-		  free(), in which case halloc will use its own version
-		  of allocator calling free() when neccessary.
-
-	halloc-1.1.0
-		* initial public release (rewrite of hhmalloc library)
-
-=============================================================================
-Copyright (c) 2004-2010, Alex Pankratov (ap@swapped.cc). All rights reserved.
-