v0.3.0

Added

• Allow creating custom resources. Custom resources have no backing product.
  Instead, they hold custom user provided config.
• Introduce config set and config unset for adding/updating/removing custom
  config on custom resources.
• Rename app command to apps
• Add 'teams create' to create a Team
• Add 'teams update' to update a Team
• Add 'teams leave' to leave a Team
• Add 'teams invite' to invite to a Team
• Add 'switch' to switch Teams, so interact with a team's resources
• Add --team and --me flags for operating under your account, or a team's
• Add --team and --me flags for billing

Fixed

• Add a newline after signup output, so it won't mess up the prompt.
• Credit Card number can be between 12 and 19 digits and cvv either 3 or 4.
• Plugin config initializes map before setting if it doesn't exist
• Plugin config defines the .manifold.yml path prior to saving if not defined