tweaks to datepicker and calendar

cms/static/sass/_jquery-ui-calendar.scss

 .ui-datepicker {
   border-color: $darkGrey;
-  background: $lightGrey;
+  border-radius: 2px;
+  background: #fff;
   font-family: $sans-serif;
   font-size: 12px;
+  @include box-shadow(0 5px 10px rgba(0, 0, 0, 0.1));
 
   .ui-widget-header {
     background: $darkGrey;
     border: none;
+    border-radius: 2px;
   }
 
   .ui-datepicker-next,

common/static/js/vendor/timepicker/jquery.timepicker.css

 .ui-timepicker-list {
 	overflow-y: auto;
 	height: 150px;
-	width: 6.5em;
+	width: 7.5em;
 	background: #fff;
-	border: 1px solid #ddd;
+	border: 1px solid #8891a1;
 	margin: 0;
 	padding: 0;
 	list-style: none;
-	-webkit-box-shadow:0 5px 10px rgba(0,0,0,0.2);
-	-moz-box-shadow:0 5px 10px rgba(0,0,0,0.2);
-	box-shadow:0 5px 10px rgba(0,0,0,0.2);
+	-webkit-box-shadow: 0 5px 10px rgba(0,0,0,0.1);
+	-moz-box-shadow: 0 5px 10px rgba(0,0,0,0.1);
+	box-shadow: 0 5px 10px rgba(0,0,0,0.1);
 	outline: none;
 	z-index: 10001;
+	font-size: 12px;
 }
 
 .ui-timepicker-list.ui-timepicker-with-duration {