Correct Sendor -> Sender and add alias for backwards compatibility

This -shouldn't- be a breaking change; can't say for certain as the
BulkSendor property is exposed though.
fixed "json: error calling MarshalJSON for type json.RawMessage"
Merge pull request #57 from Kaidence/add_query_parameters

Support all ElasticSearch URL query parameters
Merge pull request #59 from fractalcat/master

Correct Sendor -> Sender and add alias for backwards compatibility
Merge pull request #61 from dukex/fix/marshal-json

Fixed "json: error calling MarshalJSON for type json.RawMessage"
fix small rawmessage marshaling issue
Update search tests to match new SearchRequest interface
Add travis-ci buildfile

Build is currently failing due to a previous breaking API change, but
should be fixed with PR #68.
Merge pull request #69 from fractalcat/travis-build

Add travis-ci buildfile
Merge pull request #68 from fractalcat/wip-fix-tests

Update search tests to match new SearchRequest interface
add "default" returns in hopes of getting older go (1.0.2) to compile.

No guarantees.
use %v to print out value instead of casting to string
allow access to pending docs.
Updated outdated README and comment
Add support for indices Delete
Fix spelling of BulkIndexer in error messages
Merge pull request #73 from kjperry/master

Fix spelling of BulkIndexer in error messages
Merge pull request #71 from MonkDev/master

Updated outdated README and comment
Merge pull request #72 from victorquinn/master

Add support for indices Delete
Support HTTP Basic Auth