SAML documentation

[ehennum]

On createDatabaseClient(), document the token parameter and SAML value for the authType parameter

Document the setAuthToken() method of a DatabaseClient

[ehennum]

gulp doc should produce jsdoc that -- on the DatabaseClient page -- has the setAuthToken() method as well as the token parameter for createDatabaseClient()

[georgeajit]

Verified on develop branch. SAML auth details available.