update ceedling to 0.29.0

test/vendor/ceedling/lib/ceedling/cacheinator_helper.rb

@@ -8,5 +8,24 @@ class CacheinatorHelper
     return true if ( (@file_wrapper.exist?(cached_filepath)) and (!(@yaml_wrapper.load(cached_filepath) == hash)) )
     return false
   end
-  
+
+  def diff_cached_defines?(cached_filepath, files)
+    current_defines = COLLECTION_DEFINES_TEST_AND_VENDOR.reject(&:empty?)
+
+    current_dependency = Hash[files.collect { |source| [source, current_defines.dup] }]
+    if not @file_wrapper.exist?(cached_filepath)
+      @yaml_wrapper.dump(cached_filepath, current_dependency)
+      return false
+    end
+
+    dependencies = @yaml_wrapper.load(cached_filepath)
+    if dependencies.values_at(*current_dependency.keys) != current_dependency.values
+      dependencies.merge!(current_dependency)
+      @yaml_wrapper.dump(cached_filepath, dependencies)
+      return true
+    end
+
+    return false
+  end
+
 end