Fix tests by not watching package.json files if hash is null.
Fix tests by not watching package.json files if hash is null.

mjmasn/meteor,Hansoft/meteor,mjmasn/meteor,mjmasn/meteor,Hansoft/meteor,mjmasn/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,mjmasn/meteor,mjmasn/meteor,mjmasn/meteor