Update bootstrap to 4.0-beta

frontend/static/css/fic.css

@@ -17,6 +17,10 @@
     display:none !important;
 }
 
+.popover.bs-popover-left .arrow::after {
+    border-left-color: #7A8288;
+}
+
 body {
     overflow-y: scroll;
 }
@@ -86,13 +90,12 @@ keyframes clockanim {
     100% { opacity: 1.0; };
 }
 
-.well {
-    text-align: justify;
-}
-
-.samp {
-    overflow-x: auto;
+samp.cksum {
+    overflow-x: hidden;
     text-overflow: ellipsis;
+    max-width: 20vw;
+    display: inline-block;
+    vertical-align: middle;
 }
 
 h1 small.authors {
@@ -195,3 +198,10 @@ th.rotated div span {
     text-align: left;
     text-overflow: ellipsis;
 }
+
+ul.list-inline li {
+    display: inline;
+}
+ul.list-inline li:not(:last-child)::after {
+    content: " ● "
+}