Releasing

1. Update version of ledger-iov-app:

cd src/ledger
git fetch
git checkout v0.8.0
cd ../..

2. git add src/ledger && git commit -m "Bump version to: 0.8.0"
3. Chose a version in the form <version from ledger-iov-app>+<counter> where counter starts at 0 and is incremented for every change in the ledger-iov that does not change the ledger-iov-app repo. See semver build meta.
4. Tag with e.g. git tag v0.8.0+0.
5. Verify what you just committed
6. git push && git push --tags