Port the ability to control the default format for comments and blocks separately from other content pieces.

Comments

Tagging.

Title:Port separated default format control for comments and blocksSupport for blocks in D7
Priority:Critical» Normal
Issue tags:-D7 stable release blocker

Changing to blocks only as comments are taken care of because they use the Field API.

Also removing the D7 release blocker tag as I want to get a beta release out soon and blocks being mostly admin only are not a blocker.