adding localStorage module and test
updating all modules to use local-storage module
name change: localStorage -> storage
logging isAvailable failure; test isAvailable with actual data
handle migration
bad call, dunno where it came from
Merge pull request #768 from guardian/mediator-method-fix

Bad call, dunno where it came from
Merge pull request #762 from guardian/local-storage-module

Local storage module
add error message to logging
Merge pull request #772 from guardian/local-storage-module

Add error message to logging
storage returns an object now, so don't try and parse it
Merge pull request #775 from guardian/omniture-storage-fix

storage returns an object now, so don't try and parse it
Merge branch 'master' of github.com:guardian/frontend into single-domain