Feature/cookie flags

[wojtekolesinski]

Which issue is resolved by this Pull Request:
Resolves #118

Description of your changes:

• Add additional flags to the config that enable the user to specify HttpOnly and Secure cookie flags.
• Modify logout endpoint to support other ways of authenticating than Bearer Token

Requirements:

• Make sure your PR conforms to our contribution guidelines

[wojtekolesinski]

@athamark