[enh] add clear search button to oscar theme - fixes #454

searx/templates/oscar/search.html

@@ -6,6 +6,7 @@
         <input type="search" name="q" class="form-control" id="q" placeholder="{{ _('Search for...') }}" aria-label="{{ _('Search for...') }}" autocomplete="off" value="{{ q }}" accesskey="s">
         <span class="input-group-btn">
             <button type="submit" class="btn btn-default" aria-label="{{ _('Start search') }}"><span class="hide_if_nojs">{{ icon('search') }}</span><span class="hidden active_if_nojs">{{ _('Start search') }}</span></button>
+            <button type="reset" class="btn btn-default" aria-label="{{ _('Clear search') }}"><span class="hide_if_nojs">{{ icon('remove') }}</span><span class="hidden active_if_nojs">{{ _('Clear') }}</span></button>
         </span>
       </div>
     </div>

searx/templates/oscar/search_full.html

@@ -9,6 +9,7 @@
         <input type="search" name="q" class="form-control input-lg autofocus" id="q" placeholder="{{ _('Search for...') }}" aria-label="{{ _('Search for...') }}" autocomplete="off" value="{{ q }}" accesskey="s">
         <span class="input-group-btn">
             <button type="submit" class="btn btn-default input-lg" aria-label="{{ _('Start search') }}"><span class="hide_if_nojs">{{ icon('search') }}</span><span class="hidden active_if_nojs">{{ _('Start search') }}</span></button>
+            <button type="reset" class="btn btn-default input-lg" aria-label="{{ _('Clear search') }}"><span class="hide_if_nojs">{{ icon('remove') }}</span><span class="hidden active_if_nojs">{{ _('Clear') }}</span></button>
         </span>
     </div>
     <div class="col-md-8 col-md-offset-2  advanced">