Merge branch '2.1.2-wip' into box-sizing-exercise

Conflicts:
	docs/assets/css/bootstrap-responsive.css
	docs/assets/css/bootstrap.css
	docs/base-css.html
	docs/templates/pages/base-css.mustache
	less/forms.less
	less/mixins.less

less/forms.less

@@ -86,6 +86,7 @@ input[type="color"],
   line-height: @baseLineHeight;
   color: @gray;
   .border-radius(@inputBorderRadius);
+  vertical-align: middle;
 }
 
 // Reset appearance properties for textual inputs and textarea
@@ -126,7 +127,7 @@ input[type="color"],
     border-color: rgba(82,168,236,.8);
     outline: 0;
     outline: thin dotted \9; /* IE6-9 */
-    .box-shadow(inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(82,168,236,.6));
+    .box-shadow(~"inset 0 1px 1px rgba(0,0,0,.075), 0 0 8px rgba(82,168,236,.6)");
   }
 }
 
@@ -154,9 +155,9 @@ input[type="checkbox"] {
 // Set the height of select and file controls to match text inputs
 select,
 input[type="file"] {
-  height: 30px; /* In IE7, the height of the select element cannot be changed by height, only font-size */
+  height: @inputHeight; /* In IE7, the height of the select element cannot be changed by height, only font-size */
   *margin-top: 4px; /* For IE7, add top margin to align select with labels */
-  line-height: 30px;
+  line-height: @inputHeight;
 }
 
 // Make select elements obey height by applying a border
@@ -210,7 +211,7 @@ input[type="checkbox"]:focus {
 // Placeholder
 // -------------------------
 
-// Placeholder text gets special styles because when browsers invalidate entire lines if it doesn’t understand a selector
+// Placeholder text gets special styles because when browsers invalidate entire lines if it doesn't understand a selector
 input,
 textarea {
   .placeholder();
@@ -223,13 +224,13 @@ textarea {
 // Indent the labels to position radios/checkboxes as hanging
 .radio,
 .checkbox {
-  min-height: 18px; // clear the floating input if there is no label text
-  padding-left: 18px;
+  min-height: @baseLineHeight; // clear the floating input if there is no label text
+  padding-left: 20px;
 }
 .radio input[type="radio"],
 .checkbox input[type="checkbox"] {
   float: left;
-  margin-left: -18px;
+  margin-left: -20px;
 }
 
 // Move the options list down to align with labels
@@ -302,8 +303,12 @@ textarea[class*="span"],
 .controls-row {
   .clearfix(); // Clear the float from controls
 }
-.controls-row [class*="span"] {
-  float: left; // Float to collapse white-space for proper grid alignment
+
+// Float to collapse white-space for proper grid alignment
+.controls-row [class*="span"],
+// Redeclare the fluid grid collapse since we undo the float for inputs
+.row-fluid .controls-row [class*="span"] {
+  float: left;
 }
 
 
@@ -362,7 +367,8 @@ select:focus:required:invalid {
   border-color: #ee5f5b;
   &:focus {
     border-color: darken(#ee5f5b, 10%);
-    .box-shadow(0 0 6px lighten(#ee5f5b, 20%));
+    @shadow: 0 0 6px lighten(#ee5f5b, 20%);
+    .box-shadow(@shadow);
   }
 }
 
@@ -411,9 +417,17 @@ select:focus:required:invalid {
 .input-append,
 .input-prepend {
   margin-bottom: 5px;
-  font-size: 0;
+  font-size: 0; // white space collapse hack
   white-space: nowrap; // Prevent span and input from separating
 
+  // Reset the white space collapse hack
+  input,
+  select,
+  .uneditable-input,
+  .dropdown-menu {
+    font-size: @baseFontSize;
+  }
+
   input,
   select,
   .uneditable-input {
@@ -457,6 +471,7 @@ select:focus:required:invalid {
     border-color: @green;
   }
 }
+
 .input-prepend {
   .add-on,
   .btn {
@@ -464,17 +479,23 @@ select:focus:required:invalid {
   }
   .add-on:first-child,
   .btn:first-child {
+    // FYI, `.btn:first-child` accounts for a button group that's prepended
     .border-radius(@inputBorderRadius 0 0 @inputBorderRadius);
   }
 }
+
 .input-append {
   input,
   select,
   .uneditable-input {
     .border-radius(@inputBorderRadius 0 0 @inputBorderRadius);
+    + .btn-group .btn {
+      .border-radius(0 @inputBorderRadius @inputBorderRadius 0);
+    }
   }
   .add-on,
-  .btn {
+  .btn,
+  .btn-group {
     margin-left: -1px;
   }
   .add-on:last-child,
@@ -482,12 +503,16 @@ select:focus:required:invalid {
     .border-radius(0 @inputBorderRadius @inputBorderRadius 0);
   }
 }
+
 // Remove all border-radius for inputs with both prepend and append
 .input-prepend.input-append {
   input,
   select,
   .uneditable-input {
     .border-radius(0);
+    + .btn-group .btn {
+      .border-radius(0 @inputBorderRadius @inputBorderRadius 0);
+    }
   }
   .add-on:first-child,
   .btn:first-child {
@@ -499,10 +524,14 @@ select:focus:required:invalid {
     margin-left: -1px;
     .border-radius(0 @inputBorderRadius @inputBorderRadius 0);
   }
+  .btn-group:first-child {
+    margin-left: 0;
+  }
 }
 
 
 
+
 // SEARCH FORM
 // -----------