Collection of things to fix in v0.2.0

[garado]

• light music update needs a confirmation before changing, and needs a status indicator.
• FLAC uploads need an indicator that it's uploading the correct file (it shows the tmpfile name, which could be confusing).
• light notes list should be in the same format as light music list.
• Add -h for help
• Rename light podcast -> light podcasts
• light tools list - remove namespace column
• Add --version option
• light notes watch - general improvements.
• Sort by album
• Enhanced artist+album support to get around lack of track numbers? As in - upload music and change album metadata to be Album Name <TrackNumber> for each track, so artist+album sort works better.
• Contacts management
• Clean up JSON spec - still has original description from browser extension used for initial API definition
• Clean up API imports (inconsistent import locations)
• Cleaning up LightMusic
• Remove stray tests dir in light_api

More severe bugs

• light music upload needs much smarter overwrite detection; when uploading Playing God by Polyphia, it detected Playing God by Paramore as an overwriteable track
• Improve handling for accounts with multiple devices added