* stable-3.1:
PrologOptions: Enable error logging for dryrun options when debug is enabled
config-project-config.txt: reformat submit-section
TestSubmitType: Enable logErrors when debug logging is enabled
TestSubmitRule: Enable logErrors when debug logging is enabled
Fix typos in test.submit_rule and test.submit_type examples
RestApiServlet: Log JSON parse error at debug level
Change-Id: I7bd6bf5f4fd26b5853b8c1594d39ed7e7f51a223