fixes #4604: add span support to .pager component

docs/assets/css/bootstrap.css

@@ -4693,7 +4693,8 @@ input[type="submit"].btn.btn-mini {
   display: inline;
 }
 
-.pager a {
+.pager a,
+.pager span {
   display: inline-block;
   padding: 5px 14px;
   background-color: #fff;
@@ -4708,7 +4709,8 @@ input[type="submit"].btn.btn-mini {
   background-color: #f5f5f5;
 }
 
-.pager .next a {
+.pager .next a,
+.pager .next span {
   float: right;
 }
 
@@ -4717,7 +4719,8 @@ input[type="submit"].btn.btn-mini {
 }
 
 .pager .disabled a,
-.pager .disabled a:hover {
+.pager .disabled a:hover,
+.pager .disabled span {
   color: #999999;
   cursor: default;
   background-color: #fff;

less/pager.less

@@ -12,7 +12,8 @@
 .pager li {
   display: inline;
 }
-.pager a {
+.pager a,
+.pager span {
   display: inline-block;
   padding: 5px 14px;
   background-color: #fff;
@@ -23,14 +24,16 @@
   text-decoration: none;
   background-color: #f5f5f5;
 }
-.pager .next a {
+.pager .next a,
+.pager .next span {
   float: right;
 }
 .pager .previous a {
   float: left;
 }
 .pager .disabled a,
-.pager .disabled a:hover {
+.pager .disabled a:hover,
+.pager .disabled span {
   color: @grayLight;
   background-color: #fff;
   cursor: default;