Version 1.7.0

• Fix handleRequestAsync jsdoc example
• Add notice to askFor that works only for en_* locales.
• Allow whitespace padding in SSML input
• Add tests for app.data behavior
• Add notice that Dialogflow v2 is not supported
• Add tests for app.data behavior
• Standardize class declaration syntax
• Set Dialogflow speech for SSML in SimpleResponse
• Add @Private to getArgumentCommon
• Add max-len 100 eslint rule
• Expose ImageDisplay enum on AssistantApp instances
• Add no-magic-numbers eslint rule
• Move Enums to prototype of AssisstantApp
• Add stricter eslint autofix rules
• Add @Private type annotation to ANY_TYPE_PROPERTY_
• Add note about Brand Verification
• Adds description for ImageDisplays enum
• Fixes typo in example for askForSignIn