update alert and button styling aproach

lib/scaffolding.less

@@ -115,90 +115,4 @@ a {
     color: @linkColorHover;
     text-decoration: underline;
   }
-}
-
-// Buttons
-.btn {
-  // Button Base
-  cursor: pointer;
-  display: inline-block;
-  #gradient > .vertical-three-colors(#fff, #fff, 0.25, darken(#fff, 10%));
-  padding: 5px 14px 6px;
-  text-shadow: 0 1px 1px rgba(255,255,255,.75);
-  color: #333;
-  font-size: 13px;
-  line-height: normal;
-  border: 1px solid #ccc;
-  border-bottom-color: #bbb;
-  .border-radius(4px);
-  @shadow: inset 0 1px 0 rgba(255,255,255,.2), 0 1px 2px rgba(0,0,0,.05);
-  .box-shadow(@shadow);
-
-  &:hover {
-    background-position: 0 -15px;
-    color: #333;
-    text-decoration: none;
-  }
-
-   // Transitions
-  .transition(.1s linear all);
-
-  // Colored Button Types
-  &.primary,
-  &.danger,
-  &.danger:hover,
-  &.primary:hover {
-    color: #fff;
-  }
-
-  &.primary {
-    .btnColoring(@blue, @blueDark)
-  }
-
-  &.danger {
-    .btnColoring(lighten(@red, 15%), @red)
-  }
-
-  // Active and Disabled states
-  &.disabled {
-    cursor: default;
-    background-image: none;
-    .opacity(65);
-  }
-
-  &:disabled {
-    // disabled pseudo can't be included with .disabled
-    // def because IE8 and below will drop it ;_;
-    cursor: default;
-    background-image: none;
-    .opacity(65);
-  }
-
-  &:active {
-    @shadow: inset 0 3px 7px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.05);
-    .box-shadow(@shadow);
-  }
-
-  // Button Sizes
-  &.large {
-    font-size: 16px;
-    line-height: normal;
-    padding: 9px 14px 9px;
-    .border-radius(6px);
-  }
-
-  &.small {
-    padding: 7px 9px 7px;
-    font-size: 11px;
-  }
-
-}
-
-// Help Firefox not be a jerk about adding extra padding to buttons
-button.btn,
-input[type=submit].btn {
-  &::-moz-focus-inner {
-  	padding: 0;
-  	border: 0;
-  }
-}
+}