Updating Contact Form 7 to v 3.9.3
Markup and styling updates for Contact Us page

This commit also includes a back end component that will be outlined in
the back end updates doc

This commit involves hooking into the_content to set up markup for Contact
Us page, as well as hooking into the Contact Form 7 form class filter
wpcf7_form_class_attr to add proper Bootstrap form classes
Styling and markup updates to register page
Quick fix to register form submit button
Style and markup updates for the "My Friends" page

Also includes a functional fix to the js controling the hover effect of
the "Friend/Cancel Friend" button