Run specs without native agent - #110
Add bundle caching for Travis
Tests for Skylight modules and helpers w/out agent - #110
Integration tests for `skylight setup` - #110
Provide debugging information if CLI spec fails
Quieter CLI specs by default
Ensure CLI specs are run with the correct Rails version
Remove old Railtie tests since they're covered in the CLI integration specs
Use /tmp for test directory
Update to latest rust API
Return true from Task#handle to avoid sutdown

Resolves #117
Update extconf.rb
Update checksums.yml
Update for 0.3.5