leaflet: add versions 1.4 and 1.5

Author: simon04

assets/javascripts/templates/pages/about_tmpl.coffee

@@ -398,7 +398,7 @@ credits = [
     'https://raw.githubusercontent.com/laravel/framework/master/LICENSE.txt'
   ], [
     'Leaflet',
-    '2010-2018 Vladimir Agafonkin<br>&copy; 2010-2011, CloudMade<br>Maps &copy; OpenStreetMap contributors.',
+    '2010-2019 Vladimir Agafonkin<br>&copy; 2010-2011, CloudMade<br>Maps &copy; OpenStreetMap contributors.',
     'BSD',
     'https://raw.githubusercontent.com/Leaflet/Leaflet/master/LICENSE'
   ], [

lib/docs/scrapers/leaflet.rb

@@ -14,11 +14,21 @@ class Leaflet < UrlScraper
     options[:skip_links] = true
 
     options[:attribution] = <<-HTML
-      &copy; 2010&ndash;2018 Vladimir Agafonkin<br>
+      &copy; 2010&ndash;2019 Vladimir Agafonkin<br>
       &copy; 2010&ndash;2011, CloudMade<br>
       Maps &copy; OpenStreetMap contributors.
     HTML
 
+    version '1.5' do
+      self.release = '1.5.0'
+      self.base_url = "https://leafletjs.com/reference-#{release}.html"
+    end
+
+    version '1.4' do
+      self.release = '1.4.0'
+      self.base_url = "https://leafletjs.com/reference-#{release}.html"
+    end
+
     version '1.3' do
       self.release = '1.3.4'
       self.base_url = "https://leafletjs.com/reference-#{release}.html"