update assets from bootstrap@3.3.7

assets/less/bootstrap/input-groups.less

@@ -1,3 +1,5 @@
+// stylelint-disable selector-no-qualifying-type
+
 //
 // Input groups
 // --------------------------------------------------
@@ -10,10 +12,10 @@
   border-collapse: separate; // prevent input groups from inheriting border styles from table cells when placed within a table
 
   // Undo padding and float of grid classes
-  &[class*='col-'] {
+  &[class*="col-"] {
     float: none;
-    padding-left: 0;
     padding-right: 0;
+    padding-left: 0;
   }
 
   .form-control {
@@ -52,6 +54,7 @@
   .input-sm();
 }
 
+
 // Display as table-cell
 // -------------------------
 .input-group-addon,
@@ -76,7 +79,7 @@
 .input-group-addon {
   padding: @padding-base-vertical @padding-base-horizontal;
   font-size: @font-size-base;
-  font-weight: normal;
+  font-weight: 400;
   line-height: 1;
   color: @input-color;
   text-align: center;
@@ -97,8 +100,8 @@
   }
 
   // Nuke default margins from checkboxes and radios to vertically center within.
-  input[type='radio'],
-  input[type='checkbox'] {
+  input[type="radio"],
+  input[type="checkbox"] {
     margin-top: 0;
   }
 }