Consider using defaultconfig for some features

Every COD site I've used has overridden features, this can be partially due to bad site implementation, not using features override, or COD (and some distributions in general) making things features when they really need to be default configurations.

When evaluating Panopoly, I stumbled upon this gem:
https://www.drupal.org/project/defaultconfig

The following items I propose we move to defaultconfig:

• All default permissions. Every site has their own permissions and we don't want to override them.
• new og_menu items? (because we certainly don't want menus as features)
• strongarm settings: user_picture_dimensions user_picture_file_size user_picture_style user_pictures and more?
• image styles
• text formats

Any opinions, questions, or concerns?