Avoid refreshing when _test.go file was updated

[paganotoni]

I've seen refresh rebuilds the app even when the files i'm changing are test files. I don't know if this should be a default but at least it would be good to have an option to avoid recompiling when _test.go changed.

Some of the ideas that come into my mind here are:

• Make by default not to recompile when _test.go changed
• Add an option like ignore_tests in the config
• Allow to specify _test.go as an excluded extension

[paganotoni]

@markbates I'm thinking to prepare a PR that allows to define ignored_sufixes in the YML, does this sounds good to you ?.

[paganotoni]

@markbates ^

[mrwormhole]

is there progress on this one? I might be able to have a look ignored_suffixes is not done right? there is ignored folders