Update Danger to 4.0

Dangerfile

@@ -1,8 +1,8 @@
 # Warn when there is a big PR
-warn("Big PR") if lines_of_code > 500
+warn("Big PR") if git.lines_of_code > 500
 
 # Don't let testing shortcuts get into master by accident
-(modified_files + added_files - %w(Dangerfile)).each do |file|
+(git.modified_files + git.added_files - %w(Dangerfile)).each do |file|
   next unless File.file?(file)
   contents = File.read(file)
   if file.start_with?('spec')
@@ -13,16 +13,16 @@ end
 
 # Sometimes its a README fix, or something like that - which isn't relevant for
 # including in a CHANGELOG for example
-has_app_changes = !modified_files.grep(/lib/).empty?
-has_test_changes = !modified_files.grep(/spec/).empty?
+has_app_changes = !git.modified_files.grep(/lib/).empty?
+has_test_changes = !git.modified_files.grep(/spec/).empty?
 
 # Add a CHANGELOG entry for app changes
-if !modified_files.include?("CHANGELOG.md") && has_app_changes
+if !git.modified_files.include?("CHANGELOG.md") && has_app_changes
   fail("Please include a CHANGELOG entry. \nYou can find it at [CHANGELOG.md](https://github.com/realm/jazzy/blob/master/CHANGELOG.md).")
   message "Note, we hard-wrap at 80 chars and use 2 spaces after the last line."
 end
 
 # Non-trivial amounts of app changes without tests
-if lines_of_code > 50 && has_app_changes && !has_test_changes
+if git.lines_of_code > 50 && has_app_changes && !has_test_changes
     warn "This PR may need tests."    
 end

Gemfile.lock

@@ -20,10 +20,15 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.4.0)
+    addressable (2.5.0)
+      public_suffix (~> 2.0, >= 2.0.2)
     ast (2.2.0)
     bacon (1.2.0)
-    claide (1.0.0)
+    claide (1.0.1)
+    claide-plugins (0.9.2)
+      cork
+      nap
+      open4 (~> 1.3)
     clintegracon (0.7.0)
       colored (~> 1.2)
       diffy
@@ -59,26 +64,34 @@ GEM
       netrc (= 0.7.8)
     cocoapods-try (1.0.0)
     colored (1.2)
+    cork (0.2.0)
+      colored (~> 1.2)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
-    danger (0.8.1)
-      claide
+    danger (4.0.1)
+      claide (~> 1.0)
+      claide-plugins (>= 0.9.2)
       colored (~> 1.2)
-      faraday
-      git
+      cork (~> 0.1)
+      faraday (~> 0.9)
+      faraday-http-cache (~> 1.0)
+      git (~> 1)
+      kramdown (~> 1.5)
       octokit (~> 4.2)
-      redcarpet (~> 3.3)
       terminal-table (~> 1)
     diffy (3.1.0)
     escape (0.0.4)
-    faraday (0.9.2)
+    faraday (0.10.0)
       multipart-post (>= 1.2, < 3)
+    faraday-http-cache (1.3.1)
+      faraday (~> 0.8)
     fourflusher (0.3.1)
     fuzzy_match (2.0.4)
     git (1.3.0)
     hashdiff (0.3.0)
     i18n (0.7.0)
     json (1.8.3)
+    kramdown (1.13.1)
     liferaft (0.0.6)
     metaclass (0.0.4)
     minitest (5.9.0)
@@ -91,14 +104,15 @@ GEM
     mustache (0.99.8)
     nap (1.1.0)
     netrc (0.7.8)
-    octokit (4.3.0)
-      sawyer (~> 0.7.0, >= 0.5.3)
+    octokit (4.6.2)
+      sawyer (~> 0.8.0, >= 0.5.3)
     open4 (1.3.4)
     parser (2.3.0.7)
       ast (~> 2.2)
     powerpack (0.1.1)
     prettybacon (0.0.2)
       bacon (~> 1.2)
+    public_suffix (2.0.4)
     rainbow (2.1.0)
     rake (10.5.0)
     redcarpet (3.3.4)
@@ -112,11 +126,11 @@ GEM
     ruby-progressbar (1.7.5)
     safe_yaml (1.0.4)
     sass (3.4.22)
-    sawyer (0.7.0)
-      addressable (>= 2.3.5, < 2.5)
-      faraday (~> 0.8, < 0.10)
+    sawyer (0.8.1)
+      addressable (>= 2.3.5, < 2.6)
+      faraday (~> 0.8, < 1.0)
     sqlite3 (1.3.11)
-    terminal-table (1.5.2)
+    terminal-table (1.6.0)
     thread_safe (0.3.5)
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
@@ -150,4 +164,4 @@ DEPENDENCIES
   webmock
 
 BUNDLED WITH
-   1.13.5
+   1.13.6