Updated install_es.sh to latest version
Preparing to release 0.20.0
Handle zero-size term facets. Fixes #282.
Fixed size in facets. Closes #282
Merge pull request #283 from danfairs/hotfix/282-zero-size

Handle zero-size term facets. Fixes #282.
Bugfix: size set to 0

setting the size in a search to 0 (not None) leads to used size of 10
in the query. This is not what it should do. If the resultset 0 is
wanted it should query it.
Merge pull request #284 from julianhille/master

Bugfix in setting the size to 0 in a search
Fix __init__ of GeoDistanceFilter optimize_bbox
Merge pull request #285 from CGenie/master

fix GeoDistanceFilter optimize_bbox setting on __init__
Add options support for aliases
Merge pull request #286 from CGenie/cgenie

Add options support for aliases
Metged trunk
add DocumentMissingException exception
Added rescore query.
Alias tests pass.
Working tests. RescoreQuery now must be converted to a search object.
Index stats tests pass.
Merge pull request #288 from maciejkula/master

Fixes for test failures.
Merge pull request #289 from maciejkula/rescore_query

Add support for rescore queries
Merge pull request #287 from Fiedzia/more_exceptions

add DocumentMissingException exception