Maintenance update

BREAKING CHANGES

• reqBase is now reqPublic.
• For servers, Node.js 10 or later is required.
• For browsers, the code is now compiled to ES2018.

Minor refactoring

Changed

• Properly encode dates for draws.
• Simplified base64 to blob conversion.
• Update comma formatting
• Use shorthands for specifying asynchronous functions in delegation, draw and giveaway.

Minor fixes

Changed

• Fix docstring for the signed parameter.
• Better error message for the API key check.

Removed

• Warning messages when calling functions without an API key.

Initial Release

Added

• integer
• decimal
• sequence
• gaussian
• string
• uuid
• blob
• quota
• draw
• giveaway
• delegation