v1.6.0-rc.2
chore(docs): deprecation notices for methods and properties
docs(external-resources): add new book link and alphabetize
docs(tutorial): fix typo in images (phoneList --> phoneDetail)
chore(jQuery): bump jQuery version from 2.2.1 to 2.2.3
chore(eslint): enable `quotes: ["error", "single"]`
chore(travis): use Firefox 47