#1 Cahnges to make Gumshoe work with the luke-0.8.1

[bill_tvm]

Hi ,

This patch makes Gumshoe work with the current version of luke , that is Luke-0.8.1 . I have only changed some of the method invocations which are not supported by the newer version of Lucene used by the latest Luke , with the corresponding new method invocations required.

regards,

ajoy

[bill_tvm]