Allowing search_path for datasource configuration
Stubs next version
Merge branch 'master' of https://github.com/CartoDB/grainstore

Conflicts:
	NEWS.md
	lib/grainstore/mml_builder.js
	package.json
Accept "extra_ds_opts" for per-layer extra datasource options
Allow specifying different formats for tile via optional args
Travis config change
Travis config change
Travis config change
Travis config change
Release 0.19.0
Stubs next version
Upgrades dependencies
Specifies name in the redis pool
Release 0.20.0
Stubs next version
Removes unused base64
Upgrades dependencies
Updates news
Removes unused fs require
Merge tag '0.20.0' into pgraster

Conflicts:
	NEWS.md