Added spanish language files, thanks to Andrew Kurtis at WebHostingHub.com

Signed-off-by: Oskar Hane <oh@oskarhane.com>
Merge branch 'refs/heads/add-spanish' into staging
Added settings section for email from address and name on admin settings. Implemented this setting as well. Thanks to Denny Cherry at dcac.co for the idea and code.
Merge branch 'refs/heads/add-email-from-settings' into staging
Tagged as 4.4 release in files.
Merge branch 'refs/heads/staging'