Changed usage of create function on DataPath to sipsimple.util.makedirs

Ignore-this: 8eda3a0d6137a9456092fd90fd826a8

darcs-hash:20090325152115-1e3d8-57fb13c4be5c0af871b0905955e1b4be52f3d061
Renamed Session.terminate() to Session.end()

darcs-hash:20090325153614-58103-634153931e419b89a1e2cfb26d019864a5463a22