change up classes on tables and forms, fix nav list styles in example

lib/tables.less

@@ -42,7 +42,7 @@ tbody + tbody {
 // CONDENSED TABLE W/ HALF PADDING
 // -------------------------------
 
-.condensed-table {
+.table-condensed {
   th,
   td {
     padding: 4px 5px;
@@ -53,7 +53,7 @@ tbody + tbody {
 // BORDERED VERSION
 // ----------------
 
-.bordered-table {
+.table-bordered {
   border: 1px solid #ddd;
   border-collapse: separate; // Done so we can round those corners!
   .border-radius(4px);
@@ -94,7 +94,7 @@ tbody + tbody {
 // --------------
 
 // Default zebra-stripe styles (alternating gray and transparent backgrounds)
-.striped-table {
+.table-striped {
   tbody {
     tr:nth-child(odd) td,
     tr:nth-child(odd) th {