Address issue #59 - CWS_WP_Help_Plugin::api_slurp()

[jibbius]

Resolves #59

[jibbius]

(Updated, to remove branch conflicts).

[jibbius]

Short version of the issue:

• CWS_WP_Help_Plugin::api_slurp() doesn't register the wp-help post type.
• CWS_WP_Help_Plugin::api_slurp() is capable of calling wp_update_post(), however.
• Other plugins attach themselves to this hook (and/or) wp_insert_post... and can reasonably expect the post type to be registered.
• Thus, this causes an error/warning in some cases.
• The error/warning gets thrown in the other plugin... but ultimately the issue is in wp-help.