Reverting to M1

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Using an API naming scheme that works with Swagger

See https://github.com/scalatra/scalatra/issues/360 for a breakdown
of what wasn't working with /hackers/api.
Removing applicationName

It's not working yet.
Removing commented code.
Fixed mount point.
Adding idea plugin
Merge branch 'master' of github.com:scalatra/scalatra-in-action