Change type

What types of changes does your code introduce to go-chrome?

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Other (please explain here)

Checklist

• I have read the CONTRIBUTING guidelines.
• Lint and unit tests pass locally with my changes.
• I have created tests which fail without the change (if possible) and prove my fix is effective or that my feature works.
• I have added necessary documentation (if appropriate).

What does this implement/fix? Please explain these changes.

• clarify vague error messages
• cleanup log message log levels
• implement log data structure

Does this close any currently open issues?

#111

Any relevant logs, error output, etc?

Any other comments?