reimplemented parse loop
fixed marked text processing and line breaks
implemented skipping of empty lines
fixed endless loop on non-closed hyperlink
fixed avoiding auto link where it should not occur
handle HR
fixed code blocks and auto detection in backticks
implemented header handling
fixed windows nl trimming
moved pre formatted line handling into separate function
fixed windows nl handling
reimplemented list line handling
fixed many spaces
down to 4 failing unit tests
down to 2 failed UT
added block quote special
down to 1 failing UT
all green
added comment
added unit test for issue 6