Rails Instrumentation should honor the ignored_environments config variable

[jpterry]

Having specified config.ignored_environments = ['development', 'test'] I was surprised to see errplane attempting to send instrumentation of test runs. After looking at the code it doesn't look like the Errplane::Rails::Instrumentation checks if the current Rails.env is ignored. It really should.

[toddboom]

John,

Excellent point. We'll get that added in ASAP and get a new version pushed out with the fix. Thanks!