Contact Form: do not run contact-form through wptexturize()

For more details: https://core.trac.wordpress.org/ticket/29557#comment:62
Merge pull request #1130 from jeherve/update/contact-form-shortcode

Contact Form: do not run contact-form through wptexturize()
Update .travis.yml -- remove Ben Lobaugh from notification list.

Fixes #1131