Implemented gh-4 Attachment Column with font-awesome icons for several mime types.
Some space.
Improved attachment icons. The whole file path is not stored in full length anymore. The icon determination is improved to show appropriate icons for the mime type.
Use same methods (column_$name|column_default) to render modal content.
Performance improvement to not query all mails at once.
Term 'Attachment' is better in this context.
Merge pull request #12 from No3x/attachment-icons

Attachment icons