Add Java dependency (#347)
Add Java dependency (#347)

Closure compiler requires java 8, update docs.
FirebasePrivate/firebase-js-sdk-1,jsayol/firebase-js-sdk,FirebasePrivate/firebase-js-sdk-1,jsayol/firebase-js-sdk,jsayol/firebase-js-sdk,FirebasePrivate/firebase-js-sdk-1,jsayol/firebase-js-sdk,FirebasePrivate/firebase-js-sdk-1,FirebasePrivate/firebase-js-sdk-1,jsayol/firebase-js-sdk