Delete, move and rename albums

[ramack]

The app shall support deletion, moving and renaming albums.

Edit: in a menu of the action bar, the currently shown album, and sub-album maybe by sliding them away which unveils an the corresponding actions.

[EddyLB]

As for Piwigo-Mobile, sub-albums and images of an album are displayed programmatically in 2 sections of a collection view. Each cell of the first section contains a table presenting an album. This cell can be swiped left to reveal actions: rename/describe, move and delete as shown below.