aparo/pyes — pull request #286 by CGenie (2013-05-10 13:08:02+00:00)
Title: Add options support for aliases

According to ES documentation
http://www.elasticsearch.org/guide/reference/api/admin-indices-aliases/
aliases can support various options, like filters and routes.
I have added support for these options to add_alias, set_alias and change_alias functions.
You can pass 'filter' either as a Python dict or as an instance of pyes.filters.Filter.