Using toString on something that is already of type String

Lint issue
Use isEmpty instead of comparing to List.size

Lint issue
Inferred Set[Any]. Add explicit if this is correct

Lint issue
Using toString on something that is already of type String

Lint issues
Using toString on something that is already of type String

Lint issues
Use nonEmpty instead of comparing to List.size

Lint issues
This string interpolation has no arguments

Lint issues
Merge remote-tracking branch 'upstream/master'
Merge pull request #79 from lespea/master

Fix lint issues