Add filter to retrieve aggregations
Change filter to action
Update readme
Merge pull request #93 from 10up/feature/aggregation-filter

Add filter to retrieve aggregations
Add args and scope to ep_retrieve_aggregations
Action to allow for retrieval of raw response
Merge pull request #95 from 10up/feature/action-raw-response

Action to allow for retrieval of raw response
Update version number to 0.9.1
Travis file
Fix grammatical error
Fix post type array values php error
Only run travis in php 5.5
Add build status to readme
Merge branch 'master' into bulk