Integration branch containing both MR 102 and 107
Given both MR !102 and !107 both stood on eachothers feet to some extent, this branch contains all commits from both in an integration branch. If both @Nutomic and @eighthave are happy that it faithfully kept their changes during the minor merge conflict resolutions, then we can merge this instead of those two branches.
* !102 changed download progress from events + listeners to broadcasts + receivers.
* !107 made use of download progress events + listeners to show a downloading UI that was embedded in the activity, rather than shown as a modal dialog.
The conflicts which arose while I merged these branches together were in `AppDetails`. I made it so that, to the best of my ability, it uses broadcast receivers instead of progress listeners when updating the progress bar. Other than that, the only other conflict was both trying to store a reference to the main button from the UI. The only changes were in naming (mainButton vs btMain) and also in the place where the local variable was assigned (onCreate() vs setupViews() which is called during onCreate() anyway).
After merging, I did some minor cleanups. This is because in the process of checking that my conflict resolution compiled, I thought it best to remove a bunch of warnings from `AppDetails` and others. Turns out that by doing so, I found a bug due to the integration (to do with the `AppDetails` querying the downloader for status in `onResume()` rather than waiting for a broadcast event) so I'm glad I did so.
Let me know what you think, and then after the next stable, we can go ahead and merge this if people are happy.
p.s. I have no idea why GitLab is showing @eighthave's commit at the top of the list of commits, after my integration related commits.
See merge request !114
2b8a882933