fix 404
Fixes "moment not defined" error in S3File field type.

Error occurs when one uses the datePrefix option on the S3File type.
Adding ability to define attachments to emails via Mandrill.
Merge pull request #157 from ovaillancourt/patch-1

Fixes "moment not defined" error in S3File field type.
Merge pull request #158 from bladey/master

Adding ability to define attachments to emails via Mandrill.
Cleaning up log formatting
Updating packages
Merge pull request #152 from lepilepi/master

Fixing the new 404 handling
Fixing indentation
CSS regen
New keystone.import() method
Improvements to default error and 404 handling
Implemented basic location filtering
CSS Regen
Limiting list download in Admin UI to current filters
Improvements to the Readme
Updating Changelog
v0.2.2
Updated docs to Bootstrap 3.1.0. Simplified getting started - exposed new Yeoman generator. Revised visual style
Merging #161