elastic/elasticsearch-net 2.0.0-alpha2 on GitHub

#1694 Add support for Newtosoft.Json 8
#1706 Separate types for histogram and date histogram items
#1709 Boolean and "conditionless" queries
#1712 Rename ConnectionStatusHandler to OnRequestCompleted and add back functionality
#1713 High level methods now take Time instead of TimeSpan
#1720 SniffingConnectionPool now implements IDisposable (ty @garymcleanhall)
#1726 Improved Norms implementation
#1728 Add support for range queries on string fields
#1736 Fix choosing the correct HTTP method when indexing an object with no Id
#1741 Fix snowball analyzer language case sensitivity