#23)

* Update README.md

Adds details on how to find your user_id and how to set a password if you have an account that doesn't have one

* Added in code to both find the user_id and to find the primary publication / get a list of all accessible publications / user settings / user profile.

* Fixing Indent issue and changing primary pub return format.

* SImpler / more complete response format

* Add support for custom URL's in publication_url building

* Default to users default publication. Support custom_domain sign-in (requires one extra step after login to get cookies)

* Add getDraft end point call so you can load existing drafts

* Update readme to use get_user_id instead of env, and to explain how to switch publications

* adding in publication_url

* Removing extra space