Localization improvements/fixes.

ui/src/app/app.config.js

@@ -45,8 +45,12 @@ export default function AppConfig($provide,
                       .useMissingTranslationHandler('tbMissingTranslationHandler')
                       .addInterpolation('$translateMessageFormatInterpolation')
                       .useStaticFilesLoader({
-                          prefix: PUBLIC_PATH + 'locale/locale.constant-', //eslint-disable-line
-                          suffix: '.json'
+                          files: [
+                              {
+                                  prefix: PUBLIC_PATH + 'locale/locale.constant-', //eslint-disable-line
+                                  suffix: '.json'
+                              }
+                          ]
                       })
                       .registerAvailableLanguageKeys(SUPPORTED_LANGS, getLanguageAliases(SUPPORTED_LANGS)) //eslint-disable-line
                       .fallbackLanguage('en_US') // must be before determinePreferredLanguage   

ui/src/app/profile/profile.tpl.html

@@ -44,7 +44,7 @@
                         <label translate>language.language</label>
                         <md-select name="language" ng-model="vm.profileUser.additionalInfo.lang">
                             <md-option ng-repeat="lang in vm.languageList" ng-value="lang">
-                                {{ 'language.locales.' + lang | translate}}
+                                {{ lang ? ('language.locales.' + lang | translate) : ''}}
                             </md-option>
                         </md-select>
                     </md-input-container>

ui/webpack.config.dev.js

@@ -87,7 +87,7 @@ module.exports = {
             'process.env': {
                 NODE_ENV: JSON.stringify('development'),
             },
-            PUBLIC_PATH: PUBLIC_RESOURCE_PATH,
+            PUBLIC_PATH: JSON.stringify(PUBLIC_RESOURCE_PATH),
             SUPPORTED_LANGS: JSON.stringify(langs)
         }),
     ],