Merge branch 'ui/no-minimal-height' into 'master'

UI: Remove minimum container height

Depends on !1953

See the commits for more details, the messages mostly speak for themselves.

Before:

![Screen_Shot_2015-12-02_at_15.42.07](/uploads/1d8e19e4738bec39074cbb9afc400ad5/Screen_Shot_2015-12-02_at_15.42.07.png)

After:

![Screen_Shot_2015-12-02_at_15.50.34](/uploads/56153fe19bb72163a2dc9dd83850ad89/Screen_Shot_2015-12-02_at_15.50.34.png)


See merge request !1957

app/assets/stylesheets/framework/layout.scss

@@ -2,10 +2,10 @@ html {
   overflow-y: scroll;
   &.touch .tooltip { display: none !important; }
-  body {
-    padding-top: $header-height;
-  }
+}
+body {
+  background-color: #EAEBEC !important;
 }
 .container {
@@ -18,6 +18,7 @@ html {
 }
 .navless-container {
+  padding-top: $header-height;
   margin-top: 30px;
 }

app/assets/stylesheets/framework/sidebar.scss

 .page-with-sidebar {
+  padding-top: $header-height;
+
   .sidebar-wrapper {
     position: fixed;
     top: 0;
@@ -18,15 +20,12 @@
 }
 .content-wrapper {
-  min-height: 100vh;
   width: 100%;
   padding: 20px;
-  background: #EAEBEC;
   .container-fluid {
     background: #FFF;
     padding: $gl-padding;
-    min-height: 90vh;
     &.container-blank {
       background: none;

app/assets/stylesheets/pages/login.scss

 /* Login Page */
 .login-page {
+  background-color: white;
+  
   .container {
     max-width: 960px;
   }