add clearer concept of timeout vs error

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

(cherry picked from commit 104c804)
Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

src/components/views/globals/UpdateCheckBar.js

@@ -45,13 +45,16 @@ export default React.createClass({
             let message;
             switch (state) {
                 case updateStateEnum.ERROR:
-                    message = 'Error encountered when checking for an update';
+                    message = 'Error encountered when checking for an update.';
+                    break;
+                case updateStateEnum.TIMEOUT:
+                    message = 'Update Check timed out, try again later.';
                     break;
                 case updateStateEnum.NOTAVAILABLE:
-                    message = 'No update found';
+                    message = 'No update found.';
                     break;
                 case updateStateEnum.DOWNLOADING:
-                    message = 'Update is being downloaded';
+                    message = 'Update is being downloaded.';
                     done = false;
                     break;
             }

src/vector/platform/ElectronPlatform.js

@@ -158,7 +158,7 @@ export default class ElectronPlatform extends VectorBasePlatform {
         return deferred.promise.timeout(10000).catch(() => {
             electron.autoUpdater.removeListener('update-not-available', _onUpdateNotAvailable);
             electron.autoUpdater.removeListener('update-available', _onUpdateAvailable);
-            return updateStateEnum.ERROR;
+            return updateStateEnum.TIMEOUT;
         });
     }
 

src/vector/platform/VectorBasePlatform.js

@@ -24,6 +24,7 @@ import Favico from 'favico.js';
 
 export const updateStateEnum = {
     ERROR: 'ERROR',
+    TIMEOUT: 'TIMEOUT',
     NOTAVAILABLE: 'NOTAVAILABLE',
     DOWNLOADING: 'DOWNLOADING',
     READY: 'READY',