Errors found by WP Theme Check

Hi there, thanks for the theme.
I did a Theme Check via WP.org plugin suppository, using the thme check plugin. I got this: (Any comments?)
One or more errors were found for BizSphere.

REQUIRED: The theme uses the register_post_type() function, which is plugin-territory functionality.
RECOMMENDED: No reference to add_theme_support( “title-tag” ) was found in the theme. It is recommended that the theme implement this functionality for WordPress 4.1 and above.
RECOMMENDED: No reference to add_editor_style() was found in the theme. It is recommended that the theme implement editor styling, so as to make the editor content match the resulting post output in the theme, for a better user experience.
INFO: admin/options-framework.php The theme appears to use include or require. If these are being used to include separate sections of a template from independent files, then get_template_part() should be used instead.
Line 75: require_once($optionsfile);