update ceedling to 0.29.0

test/vendor/ceedling/lib/ceedling/tasks_tests.rake

@@ -1,7 +1,7 @@
 require 'ceedling/constants'
 
 task :test => [:directories] do
-  @ceedling[:test_invoker].setup_and_invoke(COLLECTION_ALL_TESTS)
+  Rake.application['test:all'].invoke
 end
 
 namespace TEST_SYM do
@@ -25,6 +25,11 @@ namespace TEST_SYM do
     @ceedling[:test_invoker].setup_and_invoke(COLLECTION_ALL_TESTS, TEST_SYM, {:force_run => false})
   end
 
+  desc "Just build tests without running."
+  task :build_only => [:directories] do
+    @ceedling[:test_invoker].setup_and_invoke(COLLECTION_ALL_TESTS, TEST_SYM, {:build_only => true})
+  end
+
   desc "Run tests by matching regular expression pattern."
   task :pattern, [:regex] => [:directories] do |t, args|
     matches = []