state: use a raw collection when load settings

This is required to allow loading of settings before the env UUID
migration for settings. Without this change upgrades to 1.22 fail.
Merge pull request #1280 from mjs/settings-read-hack-fix

state: use a raw collection when load settings

This is required to allow loading of settings before the env UUID migration for settings. Without this change upgrades to 1.22 fail.

(Review request: http://reviews.vapour.ws/r/595/)