adding dev files to master

adding all the dev files, package, webpack etc, including build which will contain minified release

src/background/Setup.js

@@ -0,0 +1,38 @@
+import PersistentSyncStorage from '../helpers/PersistentSyncStorage';
+import CONFIG from '../config';
+
+const ensure = () => {
+  return new Promise((res, rej) => {
+
+    // Resolves if setup is complete
+    if(PersistentSyncStorage.data.setupComplete) {
+      // Ensure new options (on extension update) are added to options object
+      PersistentSyncStorage.set({
+        options: Object.assign({}, CONFIG.defaultOptions, PersistentSyncStorage.data.options)
+      });
+
+      return res();
+    }
+      
+    // Otherwise inits setup
+    const onSetupComplete = (request, sender, sendResponse) => {
+      if(request.name === 'setupComplete') {
+        chrome.runtime.onMessage.removeListener(onSetupComplete);
+     
+        PersistentSyncStorage.set({
+          setupComplete: true
+        });
+        
+        res();
+      }
+
+      return true;
+    };
+
+    chrome.tabs.create({ url: './html/welcome.html' });
+    chrome.runtime.onMessage.addListener(onSetupComplete);
+    console.log('Setup Complete');
+  });
+};
+
+export default {ensure};