fix doctest plugin / use same command for release and travis build

[kailuowang]

1. disabled doctest plugin on all js projects which was enabled by this [commit])67eacc7)
2. use the same commands for travis and release
3. added freeJS test to validateJS
4. try use aggregated project test as much as possible (will see if travis can handle)

[codecov-io]

Current coverage is 91.39% (diff: 100%)

Merging #1322 into master will decrease coverage by 0.08%

@@             master      #1322   diff @@
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  Files           234        237     +3   
  Lines          3543       3567    +24   
  Methods        3484       3502    +18   
  Messages          0          0          
  Branches         59         64     +5   
==========================================
+ Hits           3241       3260    +19   
- Misses          302        307     +5   
  Partials          0          0          

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[tkawachi]

Hi @kailuowang, sbt-doctest requires JvmPlugin so that it's not enabled automatically in ScalaJS project. Is it enabled without disablePlugin() in this case?

https://github.com/tkawachi/sbt-doctest/blob/master/src/main/scala/com/github/tkawachi/doctest/DoctestPlugin.scala#L34-L35

[kailuowang]

@tkawach yes, it's enabled without the disablePlugin, I am not sure if requiring JvmPlugin disable it for js projects. See scalajs plugin requires JvmPlugin as well.
https://github.com/scala-js/scala-js/blob/master/sbt-plugin/src/main/scala/org/scalajs/sbtplugin/ScalaJSPlugin.scala#L29

[non]

I'd love to see this issue fixed, so let's give it a shot. 👍

Thanks for working on this @kailuowang!

[fthomas]

In refined I added doctestGenTests := Seq.empty to the common settings for JS subprojects. This might save us from adding all those disablePlugins(DoctestPlugin).

[kailuowang]

@fthomas that worked, thanks!

[fthomas]

👍

I think you can now also remove import com.github.tkawachi.doctest.DoctestPlugin, right?

[kailuowang]

@fthomas good catch. Fixed.