More work on adding tags to dashboard, added bootstrap tagsinput

src/css/less/grafana.less

@@ -1,4 +1,5 @@
 @import "submenu.less";
+@import "..\..\vendor\tagsinput\bootstrap-tagsinput.less";
 
 .navbar-static-top {
   border-bottom: 1px solid black;

src/css/less/overrides.less

@@ -554,25 +554,8 @@ div.flot-text {
 
 
 // Labels & Badges
-// Colors
-// Only give background-color difference to links (and to simplify, we don't qualifty with `a` but [href] attribute)
-.label,
-.badge {
-  color: @linkColor;
 
-  // Important (red)
-  &-important         { background-color: @errorText; }
-  &-important[href]   { background-color: darken(@errorText, 10%); }
-  // Warnings (orange)
-  &-warning           { background-color: @orange; }
-  &-warning[href]     { background-color: darken(@orange, 10%); }
-  // Success (green)
-  &-success           { background-color: @successText; }
-  &-success[href]     { background-color: darken(@successText, 10%); }
-  // Info (turquoise)
-  &-info              { background-color: @purple; }
-  &-info[href]        { background-color: darken(@purple, 10%); }
-  // Inverse (black)
-  &-inverse           { background-color: @grayDark; }
-  &-inverse[href]     { background-color: darken(@grayDark, 10%); }
+.label-tag, .label-tag:hover {
+  background-color: @purple;
+  color: @linkColor;
 }

src/css/less/variables.dark.less

@@ -159,7 +159,7 @@
 
 // Input placeholder text color
 // -------------------------
-@placeholderText:         @grayLight;
+@placeholderText:         darken(@textColor, 25%);
 
 
 // Hr border color