merge draft-folder-1816-3.  makes 'drafts' an inbox view instead of a separate page/fragment.  author: jml, reviewer: moe.  closes #1816
merge draft-folder-1816-3.  makes 'drafts' an inbox view instead of a separate page/fragment.  author: jml, reviewer: moe.  closes #1816

twisted/axiom,hawkowl/axiom