crlf to lf
added simpleindex providing a "typed" index using field-instances to
convert typed indexfields betweene js-values and lucene-values
also adding a convenient way of querying
added resultwrapper-helper (this one is not final and my change
significantly)
reverted unintended changes to index_test.js
Merge pull request #3 from kmfdm1/lucene47

Lucene47 SimpleIndex