Adds base64 background search icon.

All inputs of type `search` will have the gray background
and search icon centered.
Because the search magnifier is a bg image,
I had to hide it with `[value=""]`.
I added a little javascript to make sure each input always has it's
own value.

app/assets/javascripts/application.js.coffee

@@ -203,4 +203,13 @@ $ ->
     form = btn.closest("form")
     new ConfirmDangerModal(form, text)
 
+  $('input[type="search"]').each ->
+    $this = $(this)
+    $this.attr 'value', $this.val()
+    return
+    
+  $(document).on 'keyup', 'input[type="search"]' , (e) ->
+    $this = $(this)
+    $this.attr 'value', $this.val()
+
   new Aside()

app/assets/stylesheets/framework/header.scss

@@ -108,16 +108,10 @@ header {
 
     .search-input {
       width: 220px;
-      background-image: image-url("icon-search.png");
-      background-repeat: no-repeat;
-      background-position: 195px;
-      @include input-big;
 
       &:focus {
         @include box-shadow(none);
         outline: none;
-        border-color: #DDD;
-        background-color: #FFF;
       }
     }
   }

app/assets/stylesheets/pages/issues.scss

@@ -49,11 +49,6 @@
 .issue-search-form {
   margin: 0;
   height: 24px;
-
-  .issue_search {
-    border: 1px solid #DDD !important;
-    background-color: #f4f4f4;
-  }
 }
 
 form.edit-issue {

app/helpers/application_helper.rb

@@ -171,7 +171,7 @@ module ApplicationHelper
 
   def search_placeholder
     if @project && @project.persisted?
-      'Search in this project'
+      'Search'
     elsif @snippet || @snippets || @show_snippets
       'Search snippets'
     elsif @group && @group.persisted?

app/views/shared/issuable/_search_form.html.haml

@@ -1,6 +1,6 @@
 = form_tag(path, method: :get, id: "issue_search_form", class: 'pull-left issue-search-form') do
   .append-right-10.hidden-xs.hidden-sm
-    = search_field_tag :issue_search, params[:issue_search], { placeholder: 'Filter by title or description', class: 'form-control issue_search search-text-input', spellcheck: false }
+    = search_field_tag :issue_search, params[:issue_search], { placeholder: 'Filter', class: 'form-control issue_search search-text-input', spellcheck: false }
     = hidden_field_tag :state, params['state']
     = hidden_field_tag :scope, params['scope']
     = hidden_field_tag :assignee_id, params['assignee_id']

features/steps/project/wiki.rb

@@ -163,7 +163,7 @@ class Spinach::Features::ProjectWiki < Spinach::FeatureSteps
   end
 
   step 'I search for Wiki content' do
-    fill_in "Search in this project", with: "wiki_content"
+    fill_in "Search", with: "wiki_content"
     click_button "Search"
   end