SystemJS 0.20.13

Features

• Fixes default import interop for __esModule cases where exports.default is provided only (see Module Loader release notes at https://github.com/ModuleLoader/es-module-loader/releases/tag/2.2.0)
• Errors are now cached in the loader registry to match the WhatWG HTML module script loading algorithm (https://github.com/ModuleLoader/es-module-loader/releases/tag/2.2.0). Errors can only be cleared by using the System.registry.delete API.
• Prepares the way for import.meta.url transformers

Bug Fixes

• URL resolution fixed to support treating ./x:y as a relative not an absolute url.
• Fix to ensure correct source maps are output for plugin loaders thanks to @blittle (f6f3b16)
• Fixes a mapping bug in the production loader (13df95c)
• Fixes to URI encoding in Node (6999314, 8465358)