[Enhancement] Share with user / group

[Bugsbane]

Basically, the same ability to share with a user / group sans link, that the webapp has, but in the Android app. Possibly via Long press > Share with user / group > Choose user/group > choose folder to store in

[fxshpac]

Can anyone comment on whether or when this feature will be added to Android app? It's a pain to share a folder to another user using phone browser.

[tobiasKaminsky]

As this is a good idea this feature will be implemented.
But when this will be done depends on the spare time all developers have. And on their priorities...
So, I cannot guess when this will be.

And, without digging in the server code, I guess that we need also some functions on the server side, e.g. "get all users".

Of course this will be sooner added to the app if someone is providing code.

[rperezb]

WIP https://github.com/owncloud/android/tree/share_with_users

[rperezb]

Just noticed that this is a duplicated of: #880, let´s follow its status on that one since there are more people involved