refactor(css): remove useless css classes (#274)

assets/css/app.css

@@ -1,98 +1,7 @@
-.container > hr {
-    margin: 60px 0;
-}
-
-.jumbotron {
-    margin: 80px 0;
-    text-align: center;
-}
-
-.jumbotron h1 {
-    font-size: 100px;
-    line-height: 1;
-}
-
-.jumbotron .lead {
-    font-size: 24px;
-    line-height: 1.25;
-}
-
-.jumbotron .btn {
-    padding: 14px 24px;
-    font-size: 21px;
-}
-
-.marketing {
-    margin: 60px 0;
-}
-
-.marketing p + h4 {
-    margin-top: 28px;
-}
-
-.masthead .nav {
-    margin: 0;
-    margin: 0 0 2em 0;
-    width: 100%;
-}
-
-.masthead .nav.well {
-    padding: 0;
-}
-
-.masthead .nav li {
-    display: table-cell;
-    float: none;
-    width: 1%;
-}
-
-.masthead .nav li a {
-    font-weight: bold;
-    text-align: center;
-    border-right: 1px solid rgba(0,0,0,.1);
-    border-left: 1px solid rgba(255,255,255,.75);
-}
-
-.masthead .nav li:first-child a {
-    border-left: 0;
-    border-radius: 3px 0 0 3px;
-}
-.masthead .nav li:last-child a {
-    border-right: 0;
-    border-radius: 0 3px 3px 0;
-}
-
 .btn-group button {
     margin: 3px;
 }
 
-.detail {
-    width: 80%;
-    margin: 0 auto;
-}
-
-.center {
-    width: 100%;
-    margin: 0 auto;
-}
-
-.btn-remove {
-    max-width: 70%;
-    margin: 0 auto;
-}
-
-.actions {
-    margin: 0 auto;
-}
-
-.container-bottom {
-    height: 50px;
-}
-
-.well {
-    padding: 10px 15px 0 15px;
-}
-
 .messages {
     max-height: 50px;
     overflow-x: hidden;
@@ -106,14 +15,6 @@
     border-width: 0 0 0 1em;
 }
 
-.inline-four .form-control {
-    max-width: 25%;
-}
-
-.dropdown {
-    cursor: pointer;
-}
-
 .logo {
   display: inline;
   width: 100%;
@@ -203,10 +104,6 @@ input[type="radio"] {
   cursor: pointer;
 }
 
-.action-group {
-  margin: 10px;
-}
-
 .btn-ico {
   margin-right: 5px;
 }