Allow searches to start on an ID other than zero

Some NetSuite objects have negative internal IDs. Without passing a
negative :start_id, the search starts at zero and cannot be overridden.

This is a temporary fix until we determine how to best support this
feature as well as result batching.
Bump to 1.0.1
Merge pull request #8 from acumenbrands/allow_different_start_id

Support different start ID when searching