spacelab: fix navbar-search placeholder color and spacing

spacelab/bootswatch.less

@@ -44,6 +44,7 @@
 	.navbar-search .search-query,
 	.navbar-search .search-query:hover {
 		margin-bottom: 0;
+		line-height: normal;
 		color: @grayLight;
 		.placeholder(@grayLight);
 		.box-shadow(inset 0 1px 2px rgba(0, 0, 0, 0.5));
@@ -95,6 +96,14 @@
 				color: @grayLighter;
 			}
 		}
+
+		.navbar-search .search-query,
+		.navbar-search .search-query:hover {
+
+			color: @white;
+
+			.placeholder(@grayLighter);
+		}
 	}
 }
 

spacelab/variables.less

@@ -187,7 +187,7 @@
 @navbarInverseSearchBackground:          lighten(@navbarInverseBackground, 25%);
 @navbarInverseSearchBackgroundFocus:     @white;
 @navbarInverseSearchBorder:              @navbarInverseBackground;
-@navbarInverseSearchPlaceholderColor:    #ccc;
+@navbarInverseSearchPlaceholderColor:    @grayLighter;
 
 @navbarInverseBrandColor:                @navbarInverseLinkColor;