1.1.x
Update Getting Started guide for 2.0

References clojurewerkz/elastisch#80.
Ditto for Aggregations
Ditto for Facets
Ditto for Percolation
Update Indexing guide for 2.0

Man that's a lot of docs.
Port Querying guide for 2.0
Merge branch '2.0-updates' (explicit connection argument is now *mandatory*)
Sync with upstream