Email link, placeholder, and form submit server logic

When a visitor clicks our email on the bottom it opens a newly composed message in their email client.

Placeholders disappear when text is entered for form.  Should work across browsers, even ones that have difficulty with the standard placeholder attribute.

Server logic (post) written to post to a not-yet-created table 'feedback' so that we can tie it in to the submit button at the bottom of the feedback form on the homepage.  The logic is currently commented out in case it would throw errors in the server as the table doesn't exist yet.