multiarch libs live in /opt/local/lib/amd64
multiarch needs setuptools installed explicitly
tell celt to put its stuff in lib/amd64
tell spice to put its stuff in lib/amd64
cleaned up build process using pkgsrc packages

All dependencies are now packaged into pkgsrc packages
for in multiarch pkgsrc. Use them.

Declare 1.0
Merge pull request #2 from nshalman/multiarch

Multiarch