removed passing of useless params, updated placeholder for user textcomplete

app/views/application/_md_editor_user.html.erb

@@ -2,7 +2,7 @@
   <div class="field_container_user">
     <% options = (defined?(options) && options || {}) %>
     <% options[:class] = "#{options[:class]} editor_field" %>
-    <% options[:placeholder] ||= "Enter user's name. Prefix with \"@\" to get suggestions." %>
+    <% options[:placeholder] ||= "Enter user's name." %>
     <%= text_field_tag name, content, options %>
   </div>
 </div>

app/views/forums/index.html.erb

@@ -1,6 +1,6 @@
 <% title "Forums" %>
 
-<%= link_to "All threads", forumthreads_path(params.except("controller", "action")), class: "btn blue right" %>
+<%= link_to "All threads", forumthreads_path, class: "btn blue right" %>
 
 <div id="forum_groups">
   <% @groups.each do |group| %>

app/views/forums/show.html.erb

@@ -2,13 +2,12 @@
 
 <h1>
   <%= title @forum %>
-  <% params[:id] = params[:id].split("-")[0] %>
-  <%= link_to "Search Threads", forumthreads_path(params.except("action", "controller")), class: "btn blue right" %>
+  <% params[:id] = @forum.id %>
+  <%= link_to "Search Threads", forumthreads_path(params.to_hash), class: "btn blue right" %>
 </h1>
 <% if @forum.can_write?(current_user) %>
   <p>
     <%= link_to "New thread", new_forumthread_path(forum: @forum), class: "btn blue" %>
-    <% params[:id] = params[:id].split("-")[0] %>
   </p>
 <% end %>