increase search field size. Style header a bit

app/assets/stylesheets/gitlab_bootstrap/mixins.scss

@@ -70,10 +70,9 @@
 @mixin header-font {
   color: $style_color;
   text-shadow: 0 1px 1px #FFF;
-  font-size: 18px;
+  font-size: 16px;
   line-height: 40px;
   font-weight: normal;
-  letter-spacing: -1px;
 }
 
 @mixin md-typography {

app/assets/stylesheets/sections/header.scss

@@ -13,7 +13,7 @@ header {
       .nav > li > a {
         color: $style_color;
         text-shadow: 0 1px 0 #fff;
-        font-size: 16px;
+        font-size: 14px;
         padding: 10px;
       }
 
@@ -69,7 +69,7 @@ header {
     position: relative;
     float: left;
     margin: 0;
-    margin-left: 10px;
+    margin-left: 5px;
     @include header-font;
   }
 
@@ -93,7 +93,7 @@ header {
     margin-left: 10px;
 
     .search-input {
-      @extend .span2;
+      @extend .span3;
       background-image: url("icon-search.png");
       background-repeat: no-repeat;
       background-position: 10px;
@@ -104,7 +104,7 @@ header {
       box-shadow: none;
       @include transition(all 0.15s ease-in 0s);
       &:focus {
-        @extend .span3;
+        @extend .span4;
       }
     }
   }
@@ -161,7 +161,7 @@ header {
     }
     .project_name {
       a {
-        color: #DDD;
+        color: #BBB;
         &:hover {
           color: #FFF;
         }