fix(datepicker): add fix for datepicker table (#2461)

- Added background for label-success
- Added min-height for datepicker body table
- Removed spacing between cells

src/datepicker/bs-datepicker.css

@@ -1,3 +1,7 @@
+.label-success {
+  background-color: #419641;
+}
+
 .bs-datepicker {
   display: inline-block;
   vertical-align: top;
@@ -103,7 +107,7 @@
 .bs-datepicker-body {
   padding: 10px;
   border-radius: 0 0 3px 3px;
-  height: 230px;
+  min-height: 230px;
   border: 1px solid #eee;
 }
 
@@ -115,6 +119,7 @@
 .bs-datepicker-body table {
   width: 100%;
   border-collapse: separate;
+  border-spacing: 0;
 }
 
 .bs-datepicker-body table th {
@@ -128,6 +133,7 @@
   color: #54708b;
   text-align: center;
   position: relative;
+  padding: 0;
 }
 
 .bs-datepicker-body table td span {