add support for custom request headers
added test for headers
Merge pull request #18 from peterhawkins/master

added support for http request headers
fix test for headers
request params ignored at search requests
Pooled connection resources exposed
consistent visibility
delete index
Merge pull request #24 from peterhawkins/master

changed visibility of Search.typeSet
facet init
facet init
terms facet final
range facet
Histogram facet
Support for face type recognition
Date Histogram
Filter Facet
statistical facet
update es/test
TermsStats + improvements