Merge pull request #50 from tovbinm/master

Add support for nested queries
#51 Added doc support to update DSL
Added tests for update DSL
Update README.md
Update README.md
Update README.md
#51 Added docAsUpsert methods and refactored original upsert. Added better tests.
Added update guide
Added support for Source into update
#51 Added support for source in update
Updated build for release 0.90.7.4
Fixed failing test
Updated test coverage for some queries/filters
Removed unused bulk code. Added more filter tests.
#48 deprecated numeric range filter
Refactored source to doc
Added percolate to index dsl
Bumped versions for release 1.0
Updated attribute / type tests
Updates to fix 1.0 changes