Merge pull request #4 from autogram-is/ESM

ESM compatibility

Author: eaton

.eslintignore

@@ -37,9 +37,6 @@ bower_components
 # Compiled binary addons (https://nodejs.org/api/addons.html)
 build/Release
 
-# Transpiled js files
-/build
-
 # Dependency directories
 node_modules/
 jspm_packages/
@@ -106,3 +103,7 @@ dist
 
 # TernJS port file
 .tern-port
+
+# MacOS cruft
+.DS_store
+package-lock.json

.eslintrc.json

@@ -4,7 +4,7 @@ Processing, normalizing, and de-duplicating large piles of URLs can be a pain, p
 
 URL Tools is a helper library whose sole purpose is making that process just a little less frustrating. It consists of four major pieces:
 
-- `ParsedUrl`, a wrapper for the standard WHATWG `URL` class that mixes in the domain and subdomain parsing from [`tldjs`](https://www.npmjs.com/package/tldjs). Serializing a `ParsedUrl` object to JSON also produces a broken out collection of its individual properties, rather than spitting out the `href` property, as is the `URL` class's habit.
+- `ParsedUrl`, a wrapper for the standard WHATWG `URL` class that mixes in the domain and subdomain parsing from [`tldts`](https://www.npmjs.com/package/tldts), and provides a convenience serializer that  preserves the object's individual properties, rather that flattening it to an href the way `URL.toJSON()` does.
 - A collection set of helper functions for URL filtering and normalizing operations, including sorting querystring parameters, stripping social sharing cruft, remapping 'ww1', 'ww2', etc. subdomains to a single canonical one, identifying web vs. non-web URLs, flagging urls on public hosting like S3, and more.
 - `NormalizedUrl`, a version of `ParsedUrl` that applies one of those normalizer functions automatically on instantiation. Functions that accept a `URL` or `ParsedURL` as a parameter can use `if (url instanceof NormalizedUrl)` to determine whether a given incoming URL has already been normalized. Yay.
 - `UrlSet`, `ParsedUrlSet`, and `NormalizedUrlSet`, a trio of Set classes that store, de-duplicate, and normalize piles of Urls in bulk. It's a bit fussy with bulk adding of relative URLs, but you can pass in a 'fallback base url' that helps in some circumstances.