add NO_BLUETOOTH state
be more careful when changing states
document state transitions

card10 uses this to automatically update its internal clock and time
zone.

hatchery: Remove unused variable

See merge request !34

hatchery: Don't create app launchers anymore

See merge request !33

There is no need for them anymore since very early firmware revisions
and they pollute the root directly

Feature/nice mood and more beautiful

See merge request !30

- opposite of TOP is BOTTOM, not BUTTON

- use whole scren width
- use colors
- switched no-contact and off
  - so it's the same order as when switching the state on card10 with `(state+1)%5`
  - NO CONTACT/OFF is still easy to access with the thumb

Update the UI for the scanner fragment

See merge request card10/companion-app-android!27

- Add a modal message for 0 devices showing
- Show the state of the connection next to every device

New 'scanning' screen, which shows when 0 devices are seen:
https://i.imgur.com/qgkox1A.jpg

Status indicators for each device:
https://i.imgur.com/dUI0iCq.jpg
(either 'NOT BONDED', 'BONDING...' or 'BONDED', The lattermost is bold and has green text)

Sort app list alphabetically

Closes #19

See merge request card10/companion-app-android!26

Mood2personal state

See merge request card10/companion-app-android!23

Deal with lint error

See merge request card10/companion-app-android!14

Merge branch 'mood2personalState' of git.card10.badge.events.ccc.de:card10/companion-app-android into mood2personalState

Fix BLE callback issues

See merge request !25