pg: remove the useless connection string
pg: remove the useless connection string
Merge branch 'useless-pg-connection-string' of github.com:sentencesio/sequelize into useless-pg-connection-string

Conflicts:
	lib/dialects/postgres/connection-manager.js
pg: remove useless connection string
Merge pull request #2039 from sentencesio/useless-pg-connection-string

pg: remove the useless connection string
Merge remote-tracking branch 'upstream/master'