only show parameters table if there are parameters
allow comments in config, apiconfig, and data JSON files
Fixes issues #75 and uses relative paths instead of hard coding / in the path
Merge pull request #181 from challgren/relative-links

Use relative links instead of hard coding "/"
Merge pull request #179 from adjs/feature/fix_empty_method_table_render

only show parameters table if there are parameters
Merge pull request #180 from adjs/feature/allow_comments_in_json_files

allow comments in config, apiconfig, and data JSON files