FAQ mentions that Gapps are included, but not which Gapps. A list someplace of included Gapps would be helpful. Thanks.FAQ and installation guide are updated for the fact that GApps are now included. Dirty flashing process has not changed for the future but for this build, I would recommend either clean flashing or at least wipe system in addition to the caches to make sure everything gets cleaned out. Clean flash before reporting any issues, they will be ignored otherwise.
Substratum will also work in rootless mode with this update so there should be no issues with it going forward. Please take them to the dedicated Substratum thread or Google+ community if you do have any problems.