Renaming 'getLocalSubdomain' to 'localSubdomain'
Renaming 'oneLocalSubdomain' to 'hasSingleLocalSubdomain'
Removing 'targetLocDom', as its functionality can be replaced by calling 'targetLocales().domain'
Merge pull request #372 from benharsh/subQuery-naming

These names seem cleaner and more useful than the existing ones. Also, dsiTargetLocDom is removed. Users can instead write "dsiTargetLocales().domain".