Merge branch 'code_blocks' into 'master'

    

    Issue #13: Changed the markup for code blocks.

    

    I changed the behavior so that all code blocks use one of the following markup (depending on whether macros are used or not):

    

    ```asciidoc

    [literal,subs="+quotes,verbatim"]

    ....

    # chccwdev -e device_number

    ....

    ```

    

    ```asciidoc

    [literal,subs="+quotes,verbatim,macros"]

    ....

    DEVICE=enccwpass:quotes[_bus_ID_]

    ....

    ```

    

    As well, `<` and `>` are no longer converted to `<` and `>` within these code blocks.

    

    @apetrova, @pbokoc: Could you please review this merge request? You can find the updated `docscii` binary file in branch code_blocks.

    

    See merge request !1