dont add license to metadata.yaml

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>
more linter work

- Lints proper email addresses
- Condenses lint fatal's for similar errors

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>
update install deps

Signed-off-by: Adam Stokes <adam.stokes@ubuntu.com>
v0.015