Merge branch '3.0.0-wip' of github.com:twbs/bootstrap into 3.0.0-wip

Conflicts:
	dist/css/bootstrap.min.css

dist/css/bootstrap.css

@@ -2473,6 +2473,7 @@ textarea.input-group-sm > .input-group-btn > .btn {
   vertical-align: middle;
   border-top: 4px solid #000000;
   border-right: 4px solid transparent;
+  border-bottom: 0 dotted;
   border-left: 4px solid transparent;
   content: "";
 }
@@ -2591,7 +2592,7 @@ textarea.input-group-sm > .input-group-btn > .btn {
 
 .dropup .caret,
 .navbar-fixed-bottom .dropdown .caret {
-  border-top: 0;
+  border-top: 0 dotted;
   border-bottom: 4px solid #000000;
   content: "";
 }
@@ -2726,7 +2727,7 @@ a.list-group-item:focus {
 .panel-title {
   margin-top: 0;
   margin-bottom: 0;
-  font-size: 17.5px;
+  font-size: 16px;
 }
 
 .panel-title > a {
@@ -4207,12 +4208,12 @@ button.close {
 }
 
 .modal-backdrop {
-  position: absolute;
+  position: fixed;
   top: 0;
   right: 0;
+  bottom: 0;
   left: 0;
   z-index: 1030;
-  height: 100%;
   background-color: #000000;
 }
 

javascript.html

@@ -1415,11 +1415,11 @@ $('.nav-tabs').button()
       <div class="panel-group" id="accordion">
         <div class="panel">
           <div class="panel-heading">
-            <h3 class="panel-title">
+            <h4 class="panel-title">
               <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
                 Collapsible Group Item #1
               </a>
-            </h3>
+            </h4>
           </div>
           <div id="collapseOne" class="panel-collapse collapse in">
             <div class="panel-body">
@@ -1429,11 +1429,11 @@ $('.nav-tabs').button()
         </div>
         <div class="panel">
           <div class="panel-heading">
-            <h3 class="panel-title">
+            <h4 class="panel-title">
               <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo">
                 Collapsible Group Item #2
               </a>
-            </h3>
+            </h4>
           </div>
           <div id="collapseTwo" class="panel-collapse collapse">
             <div class="panel-body">
@@ -1443,11 +1443,11 @@ $('.nav-tabs').button()
         </div>
         <div class="panel">
           <div class="panel-heading">
-            <h3 class="panel-title">
+            <h4 class="panel-title">
               <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#collapseThree">
                 Collapsible Group Item #3
               </a>
-            </h3>
+            </h4>
           </div>
           <div id="collapseThree" class="panel-collapse collapse">
             <div class="panel-body">
@@ -1461,11 +1461,11 @@ $('.nav-tabs').button()
 <div class="panel-group" id="accordion">
   <div class="panel">
     <div class="panel-heading">
-      <h3 class="panel-title">
+      <h4 class="panel-title">
         <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
           Collapsible Group Item #1
         </a>
-      </h3>
+      </h4>
     </div>
     <div id="collapseOne" class="panel-collapse collapse in">
       <div class="panel-body">
@@ -1475,11 +1475,11 @@ $('.nav-tabs').button()
   </div>
   <div class="panel">
     <div class="panel-heading">
-      <h3 class="panel-title">
+      <h4 class="panel-title">
         <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo">
           Collapsible Group Item #2
         </a>
-      </h3>
+      </h4>
     </div>
     <div id="collapseTwo" class="panel-collapse collapse">
       <div class="panel-body">
@@ -1489,11 +1489,11 @@ $('.nav-tabs').button()
   </div>
   <div class="panel">
     <div class="panel-heading">
-      <h3 class="panel-title">
+      <h4 class="panel-title">
         <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordion" href="#collapseThree">
           Collapsible Group Item #3
         </a>
-      </h3>
+      </h4>
     </div>
     <div id="collapseThree" class="panel-collapse collapse">
       <div class="panel-body">

less/dropdowns.less

@@ -13,6 +13,9 @@
   border-top:   @caret-width-base solid @dropdown-caret-color;
   border-right: @caret-width-base solid transparent;
   border-left:  @caret-width-base solid transparent;
+  // Firefox fix for https://github.com/twbs/bootstrap/issues/9538. Once fixed,
+  // we can just straight up remove this.
+  border-bottom: 0 dotted;
   content: "";
 }
 
@@ -161,7 +164,9 @@
 .navbar-fixed-bottom .dropdown {
   // Reverse the caret
   .caret {
-    border-top: 0;
+    // Firefox fix for https://github.com/twbs/bootstrap/issues/9538. Once this
+    // gets fixed, restore `border-top: 0;`.
+    border-top: 0 dotted;
     border-bottom: 4px solid @dropdown-caret-color;
     content: "";
   }

less/panels.less

@@ -59,7 +59,7 @@
 .panel-title {
   margin-top: 0;
   margin-bottom: 0;
-  font-size: (@font-size-base * 1.25);
+  font-size: ceil((@font-size-base * 1.125));
   > a {
     color: inherit;
   }