Rename OverlayUpstreamTracking (tl;rsi) to OUT

Signed-off-by: Gregory M. Turner <gmt@be-evil.net>
RulesParser: move ugly wip doc to bottom of file

Signed-off-by: Gregory M. Turner <gmt@be-evil.net>
RulesParser: fix syntax error rule still broken

Signed-off-by: Gregory M. Turner <gmt@be-evil.net>
RulesParser: Count comments towards lineno

Signed-off-by: Gregory M. Turner <gmt@be-evil.net>
RulesParser: extend to expose proxys for all LRParser methods and handle arbitrary keyword parse arguments

Signed-off-by: Gregory M. Turner <gmt@be-evil.net>
touch up README to reflect reality and contain less garbage

Signed-off-by: Gregory M. Turner <gmt@be-evil.net>
RulesParser: merge contiguous STRINGLITERALs

Signed-off-by: Gregory M. Turner <gmt@be-evil.net>