Customized VM to use less resources.
Moved web back to port 80.
Revert "Moved web back to port 80."

This reverts commit fdda71688889f4cdeefe4720b6d44652df2cc8e5.
Added DS_Store to Git ignore list.
Config file: Changed default cache type
Provisioning script: Install memcached.
Changed description.
Added images.
Added scripts.
Added templates.
Added styles.
Updated language data and section file.
Fixed gallery script URL.
Added platform images.
Defined `download` section.
Added download template file.
Added download related template parts.
Created custom downloads module.
Added downloads module to system initialization file.
Removed unused code.