graspit: move make to package function

This is a workaround. GraspIt! does not differentiate between building
and installing. However, during the build phase, the pkg directory is
not writable. Therefore, make is executed in the package phase.
pqp: clean up pkgbuild script
pqp: include static libraries in the final package
Merge branch 'master' of github-sandmann:Sandmann/PKGBUILDs