Tightend the PE grammar of PEG itself (Inlined "END", "PEG" required a negative lookahead to separate from following identifier)
Sync to main pt changes.
Updated more of the output formats to match the PEG changes.
Completed update of testsuite results for modified PEG grammar.
Pulled in recent general pt changes.
Brought the PEG update back into the main pt work branch.