IPFS Support + Loading Improvements (Better local file handling) + Streamlined Collection View (#25)

* support ipfs:// urls!
misc: better error message for loading from http://
tabs: don't render pages/story/urls if hidden

* ipfs work: remove ww only use sw

* electron + ipfs: add ipfs support to electron app, using ipfs-core
- route ipfs requests to files proxy with 'ipfs=' query param

* file loading:
- add support for new Chrome native file system api with file handles, which allows persistent access to files vial file handles
- if window.showOpenFilePicker() is available use that, include file handle in load message
- support asking permissions for file handles, using similar workflow as google drive auth
- attempt to ask for file permission directly, show auth button if fails (user gestured required)
- replace auth modal with iframe replacement insert to ask for auth for google drive and local file

* ui overhaul for 1.3.0 / condense collection view:
- don't show navbar in collection view
- add logo to back to home page to location bar
- condense location bar buttons
- convert terms to general about dialog, available from collection context menu
- add info tab to collection view in place of drop-down info
- make <wr-coll-info> component, used in both collection list and info tab with additional details
- update to wabac.js 2.2.0

* update CHANGES.md

src/pageutils.js

@@ -2,7 +2,7 @@ import { register } from 'register-service-worker';
 
 
 // ===========================================================================
-async function registerSW(name = "sw.js", scope = "./") {
+function registerSW(name = "sw.js", scope = "./") {
   let resolve, reject;
   
   const p = new Promise((res, rej) => {
@@ -28,7 +28,7 @@ async function registerSW(name = "sw.js", scope = "./") {
     }
   });
 
-  await p;
+  return p;
 }
 
 // ===========================================================================