Merge branch 'master' of github.com:yiisoft/yii2

yii/requirements/views/web/css.php

 <style type="text/css">
 /*!
- * Bootstrap v2.3.1
+ * Bootstrap v2.3.2
  *
  * Copyright 2012 Twitter, Inc
  * Licensed under the Apache License v2.0
@@ -1836,7 +1836,7 @@ input.search-query {
           border-radius: 15px;
 }
 
-    /* Allow for input prepend/append in search forms */
+/* Allow for input prepend/append in search forms */
 
 .form-search .input-append .search-query,
 .form-search .input-prepend .search-query {
@@ -2283,11 +2283,12 @@ table th[class*="span"],
   *margin-right: .3em;
   line-height: 14px;
   vertical-align: text-top;
+  background-image: url("../img/glyphicons-halflings.png");
   background-position: 14px 14px;
   background-repeat: no-repeat;
 }
 
-    /* White icons with optional class, or on hover/focus/active states of certain elements */
+/* White icons with optional class, or on hover/focus/active states of certain elements */
 
 .icon-white,
 .nav-pills > .active > a > [class^="icon-"],
@@ -2305,7 +2306,9 @@ table th[class*="span"],
 .dropdown-submenu:hover > a > [class^="icon-"],
 .dropdown-submenu:focus > a > [class^="icon-"],
 .dropdown-submenu:hover > a > [class*=" icon-"],
-.dropdown-submenu:focus > a > [class*=" icon-"] {}
+.dropdown-submenu:focus > a > [class*=" icon-"] {
+  background-image: url("../img/glyphicons-halflings-white.png");
+}
 
 .icon-glass {
   background-position: 0      0;
@@ -3007,6 +3010,15 @@ table th[class*="span"],
   display: block;
 }
 
+.dropdown-backdrop {
+  position: fixed;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  z-index: 990;
+}
+
 .pull-right > .dropdown-menu {
   right: 0;
   left: auto;
@@ -4171,7 +4183,7 @@ input[type="submit"].btn.btn-mini {
   border-bottom-color: #005580;
 }
 
-    /* move down carets for tabs */
+/* move down carets for tabs */
 
 .nav-tabs .dropdown-toggle .caret {
   margin-top: 8px;