Fix connecting to OAuth 1.0a providers - is-connected check was wrongly always returning true
 - Problem seems to have been introduced with linting fixes added in 369f070009d57f579598d3712e319e49af6144ac
Add information on using DELETE web script to remove OAuth 2.0 user tokens
Add MyAlfrescoApiConnector connector which extends HttpOAuth2Connector, and also removes any Origin header to work against the public API and avoid the CORS filter