Missing API Functionality

Needed

This is a list of functionality that someone trying to recreate MLTSHP using the API would not able to do.

API requests fail if signature uses SSL (#567)
can't see original poster in user shake (#589)
can't un-like a post (#592)
can't un-save a post (#593)
- to be fair, you can't do this on MLTSHP.com either, you have to go to the shake and click the "x" button, and that doesn't work on your user shake, only group shakes.
can't save a file to multiple shakes (#594)
can't display pagination info (#597)
can't see all shakes an image belongs to
can't share a video
can't get user metadata (total views, saves, likes)
can't get user display name (it's part of the user shake, not the user)
can't get followers list
can't get following list
can't follow/unfollow a user/shake
can't get a members list for a shake
can't invite a user to a shake
can't join a shake
can't get a user's announcements list
can't search
can't edit a shake
can't edit authenticated user's profile
can't create a shake
can't get conversations list
can't tell if a user is premium or not (to display the "+" icon)
can't get a list of shakes you're a member of, only shakes you own

This is a list of features that were once missing and have now been added.