Log Message:
Changes 1.0.7:
* bump FFmpeg libraries requisite to SVN >= 20080705. Drop old header
  layout support. Drop static linking support (unsupported from ages).
  Update user documentation accordingly.
* make AVIStreamHeader structure (more) 64 bit safe.
* keep up with lastest ffmpeg API changes.
PkgSrc:
* Fix buildling with newer ImageMagick