added editor-accessible (publish_page capability) send-sms menu page, so clients may have the role lower than admin, to prevent them from accessing and modifying smsapi settings, and in the future allow counting amount of messages sent.
added editor-accessible (publish_page capability) send-sms menu page, so clients may have the role lower than admin, to prevent them from accessing and modifying smsapi settings, and in the future allow counting amount of messages sent.

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