Properly hide fields of inline referenced microblog

In the issue fork, I have simply added a new form mode and form and configured a new form display for microblog. Since adding the microblog reference field to a content type occurs manually right now, configuring the field widget to use the spc inline microblog form mode should be documented before this is closed. Otherwise, before merging and closing this issue, I want to think over the form mode name.

Automatically closed - issue fixed for 2 weeks with no activity.