Merge pull request #16 from zachwhaley/master

Centered page title header
Merge pull request #17 from zachwhaley/master

Added a shell script to post news drafts
Added the contact page

The page uses the _data/contacts.yml data file to render the contacts
on the page.  Modify _data/contacts.yml to change, add, or remove a contact.
Merge pull request #18 from zachwhaley/add-contact-page

Added the contact page
Added Volunteer page
Merge pull request #19 from zachwhaley/add-volunteer-page

Added Volunteer page
Added foster page

This page has info about fostering greyhounds for GPA-CT and links
to foster applications and FAQs pdf.
Merge pull request #20 from zachwhaley/add-foster-page

Added foster page
Reorganized the header links

Replaced Adoption dropdown with a simple link to the adoption page
Added Volunteer and Foster links.
Moved News link to the right side of the header.