Changes for Gcis::Client

0.12 Jul  9  2015
     Support delete payloads for merging.

0.11 Fri Mar 20 2015
     Cleanup of example, fixed spelling in docs.

0.10 Tue Jan 13 2015
     Allow hash to become a query string for $gcis->get.

0.09 Mon Nov 17 2014
     Documentation, better error handling for put_file.