using botan installed from source instead of macports

Ignore-this: eb32a0b36261846adada870fbe59e472

The one from macports crashes

darcs-hash:20131021023906-c21fe-96b555e11d6c71df72d63fb360c1bd6c00af7409
too many for mac

Ignore-this: 23d8768b189f7de22a50766ea3d7e946

darcs-hash:20131021023938-c21fe-efcdfb9c2a6843fc9c49873bb6069ba51d8e34ee