Merge pull request #309 from stevendgonzales/master

minor correction to object reference
Merge pull request #310 from stevendgonzales/master

correction to default_sink on evet_producer creation
adding bulk_size option to elasticsearch cfg
Merge branch 'master' of github.com:ProjectMeniscus/meniscus
moving cfg option to int
Merge pull request #312 from zinic/master

Add bulk_size Configuration Option
Merge remote-tracking branch 'upstream/master'