removed all that login_token stuff.
added more logging to auth handler
gitignore
authorizations: Use a DB environment instead of a single DB and use DB_INIT_CDB flag when opening the env to deal with concurrent write operations (e.g. from add-token tool or via the nodeJS bindings) while rs-serve is running and reading from the DB (fixes #3)
no more compiler warnings :)
auth frontend: handle 'username' parameter to pre-fill the form
auth backend: print listening address when starting
return success on logout, even if session token is invalid.