Draft: Resolve "Get users working"

Closes #147, #108

From #147:

• allow plaintext password or hash
• always send user config on initial connect
• if have remembered user id, put into login box
• if have remembered user id and no password prompt for password on load
• allow config, including tools config

From #108:

• Remember tool settings
• Store in LocalStorage
• Ability to clear/forget settings