[major] choo v4 (#352)

* location: change url on location:setLocation

- [ ] don't break hashing
- [ ] allow not changing the url

fixup! move fns around

fixup! add search string

* app.start: clean

* walk: add

* location: update arg calls

* fixup! location: update

* uri-wrap: fix thunking

* router: update to latest sheet-router (#239)

* router: update to latest sheet-router

* tests: fix for latest version

* tests: fix SSR

* tests: fix history

* tests: spruce up

* docs: update example

* examples: update

* deps: bump sheet-router

* 4.0.0-0

* chore(changelog): 4.0.0 (#211)

* feat(api:) arg order (#268)

* s/data, state/state, data/

* feat(api): swap arguments

* fix(href): fix routing (#271)

* feat(http): remove (#269)

* feat(router): enable hash routing (#273)

* deps: fix mount

* 4.0.0-1

* feat(mount): copy {script,link} tags

* 4.0.0-2

* fix(mount): forEach -> for

Lol can't use forEach

* fix(router): use state.location.href (#282)

* fix(mount): use deep node clone

* 4.0.0-3

* fix(deps): remove hash-match

* 4.0.0-4

* fix(mount): return node

* 4.0.0-5

* fix(router): check if a hash is a valid selector (#339)

* 4.0.0-6

* fix(router): pass params on newstate (#343)

* 4.0.0-7

* feat(docs): update for 4.0.0 (#320)

* feat(docs): update for 4.0.0

* docs: update router example in readme (#337)

* chore(changelog): update for v4 (#351)

examples/sse/client.js

@@ -3,14 +3,12 @@ const html = require('../../html')
 
 const app = choo()
 app.model(createModel())
-app.router((route) => [
-  route('/', mainView)
-])
+app.router(['/', mainView])
 
 const tree = app.start()
 document.body.appendChild(tree)
 
-function mainView (params, state, send) {
+function mainView (state, prev, send) {
   return html`
     <div>${state.logger.msg}</div>
   `
@@ -24,27 +22,27 @@ function createModel () {
       msg: ''
     },
     subscriptions: [
-      function (send) {
+      function (send, done) {
         stream.onerror = (e) => {
-          send('logger:error', { payload: JSON.stringify(e) })
+          send('logger:error', { payload: JSON.stringify(e) }, done)
         }
         stream.onmessage = (e) => {
           const msg = JSON.parse(e.data).message
-          send('logger:print', { payload: msg })
+          send('logger:print', { payload: msg }, done)
         }
       }
     ],
     reducers: {
-      'print': (data, state) => {
+      'print': (state, data) => {
         return ({ msg: state.msg + ' ' + data.payload })
       }
     },
     effects: {
-      close: (data, state, send, done) => {
+      close: (state, data, send, done) => {
         stream.close()
         done()
       },
-      error: (data, state, send, done) => {
+      error: (state, data, send, done) => {
         console.error(`error: ${data.payload}`)
         done()
       }