Changed uninformative debug string.

"Processed" didn't mean much in that context and it was stepping on
the toes of other debugging messages.

Signed-off-by: Weland Treebark <weland@durandal.my.domain>
Add default content to new posts.

Instead of creating new posts as blank files, initialize them with
the basic skeleton of a blag post.

Signed-off-by: Weland Treebark <weland@durandal.my.domain>