GC-1013: impl new config 'app:siteUrl'

resource/locales/en-US/translation.json

@@ -260,6 +260,8 @@
     "Site Name": "Site name",
     "sitename_change": "You can change Site Name which is used for header and HTML title.",
     "header_content": "The contents entered here will be shown in the header etc.",
+    "Site URL": "Site URL",
+    "siteurl_help": "Site full URL beginning from <code>http://</code> or <code>https://</code>.",
     "Confidential name": "Confidential name",
     "ex): internal use only":"ex): internal use only",
     "enable_files_except_image": "Enable file upload other than image files.",

resource/locales/ja/translation.json

@@ -278,6 +278,8 @@
     "Site Name": "サイト名",
     "sitename_change": "ヘッダーや HTML タイトルに使用されるサイト名を変更できます。",
     "header_content": "ここに入力した内容は、ヘッダー等に表示されます。",
+    "Site URL": "サイトURL",
+    "siteurl_help": "<code>http://</code> または <code>https://</code> から始まるサイトのURL。",
     "Confidential name": "コンフィデンシャル表示",
     "ex): internal use only": "例: 社外秘",
     "enable_files_except_image": "画像以外のファイルアップロードを許可",

src/server/form/admin/app.js

@@ -4,7 +4,8 @@ var form = require('express-form')
   , field = form.field;
 
 module.exports = form(
-  field('settingForm[app:title]').required(),
+  field('settingForm[app:title]').trim(),
+  field('settingForm[app:siteUrl]').trim().isUrl(),
   field('settingForm[app:confidential]'),
   field('settingForm[app:fileUpload]').trim().toBooleanStrict()
 );

src/server/views/admin/app.html

@@ -38,11 +38,19 @@
         <div class="form-group">
           <label for="settingForm[app:title]" class="col-xs-3 control-label">{{ t('app_setting.Site Name') }}</label>
           <div class="col-xs-6">
-            <input class="form-control" type="text" name="settingForm[app:title]" value="{{ settingForm['app:title'] | default('') }}">
+            <input class="form-control" type="text" name="settingForm[app:title]" value="{{ settingForm['app:title'] | default('') }}" placeholder="GROWI">
             <p class="help-block">{{ t("app_setting.sitename_change") }}</p>
           </div>
         </div>
 
+        <div class="form-group">
+          <label for="settingForm[app:siteUrl]" class="col-xs-3 control-label">{{ t('app_setting.Site URL') }}</label>
+          <div class="col-xs-6">
+            <input class="form-control" type="text" name="settingForm[app:siteUrl]" value="{{ settingForm['app:siteUrl'] | default('') }}" placeholder="e.g. https://my.growi.org">
+            <p class="help-block">{{ t("app_setting.siteurl_help") }}</p>
+          </div>
+        </div>
+
         <div class="form-group">
           <label for="settingForm[app:confidential]" class="col-xs-3 control-label">{{ t('app_setting.Confidential name') }}</label>
           <div class="col-xs-6">