Enhancements:
- Added option to separate paragraph with <br> tag instead of enclosing it with <p> tag.
- Added option to name the folder that stores image files as "destination_file_name.images".
- Added -clrsettings option to clear option settings and operate default conversions.
Specification Modifications:
- For images linked to docx file, changed to set the path of the images to the src attribute value of the <img> tag in HTML.
Fixes:
- When underlines are outputted with tag, the end tag was not outputted correctly and the underlines are connected.
