libextractor enhancements up for review

[ng0]

[PATCH 1/5] gnu: Add libmp4v2.

This package is pulled from code.google.com and I am trying to contact upstream 
to check where the new canonical upstream location is.

[PATCH 2/5] gnu: Add tidy-html.
[PATCH 3/5] gnu: Add libsmf.

Those three above might need some further review, this is just to send in for a 
review before final descriptions, etc.

[PATCH 4/5] gnu: libextractor: Add dependencies.

Add the 3 new packages + bzip2 to the dependencies. For tidy (tidy-html) I'm 
not sure wether it is picked up, but libsmf and libmp4v2 are detected.
Our rpm package has problems, even adding it to configure will not make 
libextractor pick the include/rpm/rpm* files up.

[PATCH 5/5] gnu: libextractor: Move .a files to output "static".

Save about ~397 KiB, which compared to the size of libextractor isn't that 
small.