v3.2.0

• add /.idea to .gitignore for webstorm devs
• remove mocha --bail flag on test run to show all errors
• catch invalid token errors before calling secret provider function
• Remove the trailing newlines from thrown errors
• For security, when debug=false, all thrown errors have the same message
• Koa defaults ctx.state to {} so no need to do this ourselves
• add test for passthrough with bad token to give us 100% coverage
• fixed some minor linting issues and phrasing