fix GoogleAnalyticsPostprocessor

- require asciidoctor/extensions
- add sample code for using DocinfoProcessor
add "Inline" to class name for man inline macro
fix TextqlBlock

- require asciidoctor/extensions
- allow header to be disabled
- fix raw table content
add question to SlimBlock
add additional sample to ShellSessionTreeprocessor

- demonstrate parsing of the lines of console output following a command