Type1 plugin save button (#95)

* prototype a keyboard shortcuts plugin

* separate library and instance API layers into separate files

* fix lint errors

* remove prototype save button plugin

__tests__/integration/mirador/index.html

@@ -10,9 +10,8 @@
     <div id="mirador"></div>
     <script>document.write("<script type='text/javascript' src='../../../dist/mirador.min.js?v=" + Date.now() + "'><\/script>");</script>
     <script type="text/javascript">
-      var miradorInstance = Mirador({
-        id: 'mirador',
-        plugins: ['HelloWorld']
+     var miradorInstance = Mirador.viewer({
+       id: 'mirador'
      });
     </script>
   </body>

src/index.js

-import React from 'react';
-import ReactDOM from 'react-dom';
-import { Provider } from 'react-redux';
-import deepmerge from 'deepmerge';
-import App from './components/App';
-import { actions, store } from './store';
-import settings from './config/settings';
-import './styles/index.scss';
+import init from './init';
 
-/**
- * Default Mirador instantiation
- */
-export default function Mirador(config) {
-  const action = actions.setConfig(deepmerge(settings, config));
-  store.dispatch(action);
-  ReactDOM.render(
-    <Provider store={store}>
-      <App config={config} />
-    </Provider>,
-    document.getElementById(config.id),
-  );
-  return {
-    actions,
-    store,
+const exports = {
+  viewer: init,
+  plugins: [],
 };
-}
+
+export default exports;

src/init.js

+import React from 'react';
+import ReactDOM from 'react-dom';
+import { Provider } from 'react-redux';
+import deepmerge from 'deepmerge';
+import App from './components/App';
+import { actions, store } from './store';
+import settings from './config/settings';
+import './styles/index.scss';
+
+/**
+ * Default Mirador instantiation
+ */
+export default function (config) {
+  const viewer = {
+    actions,
+    store,
+  };
+  const action = actions.setConfig(deepmerge(settings, config));
+  store.dispatch(action);
+
+  ReactDOM.render(
+    <Provider store={store}>
+      <App config={config} />
+    </Provider>,
+    document.getElementById(config.id),
+  );
+
+  return viewer;
+}