Fixed DataPath configuration datatype to handle '~'

Ignore-this: a4f9312db52cf9dfd06d605fdfd807b

darcs-hash:20090406114903-1e3d8-e20fde73613f25df41d168db4e6d3bb129d26b5d
Added missing import in sip_register

Ignore-this: 6fe9f0ab055113c4a7c84570b4783a3e

darcs-hash:20090406124324-1e3d8-bd65d5557d5c279a0eb0df7b19d924c246bc2682