Bring PHP in line with Coding Standards

Update function, class, and file names to bring in line with common PHP
naming practices. Update command structures to match PEAR coding
standards.
Add PHP Server Config to Gruntfile
Update Hero Image
Remove Browser Validation
Remove closing PHP tag
Add client-side validation for email form

Add client-side validation with the jQuery validation plugin. This
plugin uses an ajax check to determine whether or not the email is
valid, allowing email validation to match the server side.