Optimizes away the first set of calls to _HashHR, _HashHTMLComments and _HashPHPASPBlocks; now they are called only once, from _RunBlockGamut, after _HashHTMLBlocks
Optimizes away the first set of calls to _HashHR, _HashHTMLComments and _HashPHPASPBlocks; now they are called only once, from _RunBlockGamut, after _HashHTMLBlocks

All tests pass, except the ones requiring (the ever-failing) HTML::Tidy.

tokuhirom/text-markdown,bobtfish/text-markdown,bobtfish/text-markdown