Accept positions that are zeroed, but only if there are non-zero total
values as well.
Sometimes zeroed positions are deliberate, but other times they are
placeholders meant to indicate a lack of a position. To resolve this,
Auxio now considers zeroed track/disc numbers in the presence of
non-zero track/disc numbers to be valid.
Add tests for the relatively simple Music.UID and Raw data classes
(excluding Song.Raw).
This should make sure most of the grouping code works, making the
library tests theoretically much simpler.
Fix moving items with the new queue system.
This took a bit of thinking, but I think this is the correct way to
implement this in a future-proof manner.
Like the library package, move out tag information (Date/Album.Type)
into a separate package.
Date never really made sense as base-package information.
Switch back to using settings-specific listeners rather than the
SharedPreference listener.
Again, this is due to the need to decouple android code from settings.
It also allows us to fully obscure the details of what settings we are
actually working with.
Decouple the settings god object into feature-specific settings.
This should make testing settings-dependent code much easier, as it no
longer requires a context.
Add support for date-encoding years such as "YYYYMMDD".
This is a semi-common timestamp edge-case, it seems, primarily due to
taggers wanting to encode date information in older tag formats.
