Add an option to honor emailVerified

See https://github.com/strongloop/loopback/pull/215
Fix the typo
Refactor email verification tests into a new group
Remove unused deps
Merge pull request #365 from strongloop/feature/login-email-verification

Add an option to honor emailVerified
Split out aliases for deleteById and destroyAll functions for jsdoc.
Update modules for examples
Merge pull request #371 from strongloop/jsdocs-fix

Split out aliases for deleteById and destroyAll functions for jsdoc.