Added support for  header value, added related tests, updated version number and README
Merge pull request #100 from ifandelse/rescache

Added support for  header value, added related tests, updated version nu...
Fixed bug with resolverNoCache option
Merge pull request #101 from ifandelse/rescache

Fixed bug with resolverNoCache option
Support toggling resolver caching.
Merged in @efurmantt's PR to support toggling resolver cache on and off