Revert commits

Bootstrap is being relicensed from Apache 2.0 to MIT so that more of our community can use the free and open source software we lovely create together. As commits are copyright their original authors, the commits of any individual not agreeing to relicense their contributions are being removed to be later rewritten by the @twbs/team.

This undoes the changes introduced by the following commits:
https://github.com/twbs/bootstrap/commit/7ea34ae0ef79c793e9a9d393b4eef825b71e84b5 , https://github.com/twbs/bootstrap/commit/7376eef378fe7d5e69b8b8cce93c7c64b751d55a , https://github.com/twbs/bootstrap/commit/303ba1326bbe367598ab4cc063b4607507208e56 , https://github.com/twbs/bootstrap/commit/7d1c8c2a0ce16331583a965821690f7715e62908 , https://github.com/twbs/bootstrap/commit/11319f6da9f9a19ec40743cdfe868ac732698149 , https://github.com/twbs/bootstrap/commit/110fc8860117d8675345806219ba313b18086db2 , https://github.com/twbs/bootstrap/commit/ced08f69359f3a70771804a98fa3c499f388cc74

less/breadcrumbs.less

@@ -10,7 +10,7 @@
   background-color: @breadcrumb-bg;
   border-radius: @border-radius-base;
   > li {
-    display: inline-block;
+    display: inline;
     + li:before {
       content: "@{breadcrumb-separator}\00a0"; // Unicode space added since inline-block means non-collapsing white-space
       padding: 0 5px;

less/buttons.less

@@ -18,32 +18,32 @@
   white-space: nowrap;
   .button-size(@padding-base-vertical; @padding-base-horizontal; @font-size-base; @line-height-base; @border-radius-base);
   .user-select(none);
+}
 
-  &:focus {
-    .tab-focus();
-  }
+.btn:focus {
+  .tab-focus();
+}
 
-  &:hover,
-  &:focus {
-    color: @btn-default-color;
-    text-decoration: none;
-  }
+.btn:hover,
+.btn:focus {
+  color: @btn-default-color;
+  text-decoration: none;
+}
 
-  &:active,
-  &.active {
-    outline: 0;
-    background-image: none;
-    .box-shadow(inset 0 3px 5px rgba(0,0,0,.125));
-  }
+.btn:active,
+.btn.active {
+  outline: 0;
+  background-image: none;
+  .box-shadow(inset 0 3px 5px rgba(0,0,0,.125));
+}
 
-  &.disabled,
-  &[disabled],
-  fieldset[disabled] & {
-    cursor: not-allowed;
-    pointer-events: none; // Future-proof disabling of clicks
-    .opacity(.65);
-    .box-shadow(none);
-  }
+.btn.disabled,
+.btn[disabled],
+fieldset[disabled] .btn {
+  cursor: not-allowed;
+  pointer-events: none; // Future-proof disabling of clicks
+  .opacity(.65);
+  .box-shadow(none);
 }
 
 

less/navbar.less

@@ -215,7 +215,7 @@
 // Builds on top of the `.nav` components with its own modifier class to make
 // the nav the full height of the horizontal nav (above 768px).
 
-.navbar-nav {
+.navbar .nav {
   margin: (@navbar-padding-vertical / 2) -@navbar-padding-horizontal;
 
   > li > a {