Bump gem version

Gemfile

@@ -2,5 +2,5 @@ source "https://rubygems.org"
 
 ruby '2.3.1'
 
-gem 'uk_planning_scraper', :git => 'https://github.com/adrianshort/uk_planning_scraper/', :ref => '675e1fa'
+gem 'uk_planning_scraper', :git => 'https://github.com/adrianshort/uk_planning_scraper/', :ref => 'cad5fcd'
 gem 'scraperwiki', :git => 'https://github.com/openaustralia/scraperwiki-ruby/', :branch => 'morph_defaults'

Gemfile.lock

@@ -1,9 +1,9 @@
 GIT
   remote: https://github.com/adrianshort/uk_planning_scraper/
-  revision: 675e1fa28f1b3418ce0e22c5ec0116aac84969d3
-  ref: 675e1fa
+  revision: cad5fcd2b98260572dccf0a4cf1ddfeabc469a43
+  ref: cad5fcd
   specs:
-    uk_planning_scraper (0.3.2)
+    uk_planning_scraper (0.4.0)
       http
       mechanize (~> 2.7)
 
@@ -24,7 +24,7 @@ GEM
     connection_pool (2.2.2)
     domain_name (0.5.20180417)
       unf (>= 0.0.5, < 1.0.0)
-    http (3.3.0)
+    http (4.0.0)
       addressable (~> 2.3)
       http-cookie (~> 1.0)
       http-form_data (~> 2.0)