Added bittools tests.
Added bittools tests.
braingram/pylibtiff,brianhelba/pylibtiff,tacaswell/pylibtiff,braingram/pylibtiff,jtouug/pylibtiff,tacaswell/pylibtiff,jtouug/pylibtiff,fspica/pylibtiff,samskillman/pylibtiff,nagyistoce/pylibtiff-1,sephalon/pylibtiff,IanZhao/pylibtiff,brianhelba/pylibtiff,IanZhao/pylibtiff,brianhelba/pylibtiff,fspica/pylibtiff,nagyistoce/pylibtiff-1,samskillman/pylibtiff,sephalon/pylibtiff