As an OC user I want to be able to handle privileges on the shared data so that I may decide the level of access to my data

[rperezb]

Following the implementation described on: #425

AC:

• Background: on the first step of the share with users feature, it´s not possible to handle privileges, it´s taken into account the ones sent by the server by default
• Expected:
  • On the mail share view the users with whom the file has been shared are listed, if you switch over, the delete button is shown
  • It has to be added an (i) button, as it is done on the accounts view
  • When you click on the (i) button, the privileges are shown in a new view so that the user may handle them, besides, it´s shown its current status
    • can share
    • can edit
    • change
    • create
    • delete
  • The option stop sharing will be shown too at the bottom of this view
  • On the top bar is included the name of the user/group
  • They have to be shown as check buttons, being checked if enabled and unchecked if not

[rperezb]

@jancborchardt @owncloud/designers your input is appreciated

[rperezb]

WIP https://github.com/owncloud/ios/tree/share_with_privileges