Workaround empty config, refs item:750
Bump Pouch, closes item:753
Lock Angular to fix CSP error, closes item:752
Workaround empty config, refs item:750
Revert "Farewell chrome storage"

This reverts commit 96f4f54d1cf9787c769f2bb60faa5157891cd87d.

We need it for the migration workflow.

Conflicts:
	app/scripts/services/storage-service.js
Expose internal collections union
Add Object#pick utility
Initial pouch migration service
Finish migrator, closes item:746
Only attempt migration if in Chrome

Fixes tests.
Merge pull request #476 from tlvince/bug/chrome-pouch-migrator

Add migration service
Merge pull request #473 from tlvince/bug/app-config-undefined

Workaround empty config, refs item:750
Merge branch 'upstream-develop' into feature/cancel-background-sync-during-clear-storage