Changed Javascript behaviour for disabled fields on blog creation and editing. All fields won't be disabled on beginning. After Javascript is loaded all functions will work again. This update makes the plugin independend from JavaScript.
Readme
Bumps stable tag to 1.8.3
Fix duplicate groupblog activity post entries.

Needed to look up existing activity entry with proper activity type.

Also:

* Add a different activity action if we are editing an existing blog post.
* Use the group's privacy setting for the activity 'hide_sitewide' flag

Fixes #25.
Add activity comment check for groupblog posts.
Use post permalink for groupblog post activity permalink.
Readme updates
Bumps to 1.8.4