Replace decompiler with Fernflower

[pun-ky]

https://github.com/JetBrains/intellij-community/tree/master/plugins/java-decompiler/engine

[pun-ky]

or https://mvnrepository.com/artifact/org.benf/cfr/0.146

[ielali]

Hello since we've moved to Java 11 the bundle stopped working because of the compiler compatibility. Following your suggestion in the ticket I switched the compiler locally to cfr and it's working alright. If you're interested I can submit a pull request. (I was blocked from ding so)

[pun-ky]

Sure. If it works 🙂 then I will release next version with that fix.

[krystian-panek-wttech]

thanks @ielali , finally released 2.0.0; sorry for lag ;)