Merge pull request #14 from davie/bulk-insert

beginnings of bulk support
search-all-indexes-and-types shouldn't take an index
Merge pull request #15 from davie/minor-tidy-ups

search-all-indexes-and-types shouldn't take an index
Follow ClojureWerkz code style
Test against Clojure 1.5.0-RC4
Support 0.12.0
allow posting with default index and/or type for bulk requests