Added resume and contact pages

Added:
* controllers/contact.php ~ handles contact form
* views/contact/contact_success_v.php
* views/contact/contact_v.php
~ contact success page and contact form

Changes:
* .gitignore ~ added files/ to ignore list
* helpers/data_processing_helper.php ~ added function for stripping
simple html tags that don't have any attributes. I mainly added this for
reformatting snippets, which come from tinymce with p tags pre/post
fixed already.
* helpers/view_processing_helper.php ~ updated form building function to
support displaying form errors inline next to their respective field
* libraries/FrontendController.php ~ setup the image directory here so
its available to all frontend views
* views/about/about_index_v.php ~ updated about page to use imageDir
variable
* css/main.css ~ added a top margin to the thank you message