- fixed bug in aggs when missing sub_aggs
- added new aggs
Updated code
Preparing release 0.99.0
Merge pull request #392 from mgellesch/aggs_fix2

- fixed bug in aggs when missing sub_aggs
 fix import OrderedDict
  indices.get_mapping adapted to the new response from ES1.10
Merge pull request #394 from JoeZ99/fix-ordereddict-import

 fix import OrderedDict
Merge pull request #395 from JoeZ99/new-mappings-response

  indices.get_mapping adapted to the new response from ES1.10
Set version to 0.99.2-dev version
Fixed old reverference to get_mappings. Closes #393