add extracts and plain text options; add info to prop so inprop works
add Page.text for plain text
include page.fullurl and page.text in README
author names were missing from license, hah
include extract and fullurl in json
add tests for fullurl and text

add tests for fullurl and text

should start_with, not should.start_with
Merge pull request #1 from tristaneuan/master

Fulltext extract from tristaneuan