Gradle 5.0 support

[vehovsky]

Simple fix for #38

[hoangtranwork]

This is a great project. However it seems like it's no longer maintained :(.

[danthegoodman]

I originally started this project because we needed it at my work. I've since changed positions and no longer deal with java or maven. You are correct, this is no longer maintained, but I am glad to see that it's still being used and seems to be (mostly) just working!

I just pulled in this and tried to run the tests but only got errors because grade 2 doesn't support java 10 and attempting to upgrade the tests for java 10 gave me more errors. 😖

I'm kicking myself now for not accepting #28 or #29, as that would have made it easier to deploy without my computer being in the correct state.

I'm not sure what sort of impact using different JDK versions at build time will give me, especially with compatibility for other's running different java versions.

@vehovsky @hoangtranwork If you would like to see this move forward, I could use some assistance in

1. Updating the tests to cover gradle 5. This may be aided by the unmerged Now supports gradle 3.x #36.
2. Documenting the required java versions for building / developing this project.

[hoangtranwork]

@danthegoodman Thank you very much for this great work. I've been using this for our Java/Kotlin backend services and it works great.

Either this is fixed or not. I will continue to use this (and keep my gradle version below 5.0 if needed). The benefit outweighs the cost.

Thank you again. Have a good day.

[dfev77]

Gradle 4 should be enough for java 10. See new PR
However I only build it with 8, will try with 10 next days (dw too slow right now)

[gianluz]

PR is opened but looks like he is not maintaining anymore 😞 we should to fork and use the forked version

[michael-newsrx]

Where is forked version?

[hoangtranwork]

@michael what a great timing, I have just done configuring a project with gradle 5/kotlin dsl using this published fork https://plugins.gradle.org/plugin/it.gianluz.capsule

[danthegoodman]

@hoangtranwork Congrats! 😄 I've added a link to your project from my README.

[hoangtranwork]

@danthegoodman Thank you. Please note that I'm just a user of the lib, it's a @gianluz's project