Mp4: fixed reading 64-bit atoms. Previously there was no validation for the size of a 64-bit atom in an mp4 file. This could lead to a CPU hog when the size is 0, or various other problems due to integer underflow when calculating atom data size, including segmentation fault or worker process memory disclosure.

make -f misc/GNUmakefile release

the required tools:
*) xsltproc to build CHANGES,
*) xslscript.pl ( http://hg.nginx.org/xslscript ) to build XSLTs
   from XSLScript sources.


make -f misc/GNUmakefile icons

the required tool:
*) netpbm to create Win32 icons from xpm sources.