Merge pull request #98 from savannahjulian/master

New image sizes
Added validator additional methods
Required alphanumeric entry in names
Sanitize first and last name in giving form
Media Mention "Read" button opens a new window.
Mimic media mention header spacing
Merge pull request #101 from savannahjulian/master

Responsive fixes #95
Message in archive template when no posts are found
Shadow only on excerpt, not page header
Event page cleanup
Post info includes link to archive
Post "read more" link is more attractive for posts
Merge pull request #102 from savannahjulian/master

More mobile size fixes
Editor Stylesheet
Editor Styles now handled with SCSS
Merge pull request #103 from savannahjulian/master

Responsive fixes and Static content styles
Another responsive fix to statistic boxes