Merge branch 'issues-filter-by-description' into 'master'

Issues filter by description

In Issues section of any project there is a filter box, which by default says 'Filter by title or description' - so this behaviour is desired. But in fact only filter by title works and filter by description DOESN'T work. This fix adds description fitlering.

app/controllers/projects/issues_controller.rb

@@ -20,7 +20,7 @@ class Projects::IssuesController < Projects::ApplicationController
     terms = params['issue_search']
 
     @issues = issues_filtered
-    @issues = @issues.where("title LIKE ?", "%#{terms}%") if terms.present?
+    @issues = @issues.where("title LIKE ? OR description LIKE ?", "%#{terms}%", "%#{terms}%") if terms.present?
     @issues = @issues.page(params[:page]).per(20)
 
     assignee_id, milestone_id = params[:assignee_id], params[:milestone_id]