bintars depend on dynamic libraries

bintars depend on dynamic libraries. This is unavoidable, but generally it should have as few dependencies as possible.

Avoidable dependencies seem to be

• libaio.so.1
• libncurses.so.5
• libtinfo.so.5
• liblzma.so.5 (new in 10.6!)

We should try to link them statically if possible. In particular the last one, it's a new dependency that 10.5 doesn't have.

Also, lz4 could be statically compiled, so that we would have lz4-enabled bintars, to match the feature set of rpm and deb packages.