fixed failed build on Windows

[Graur]

What's done:

• changed implementation of uname object from EO to Java. Due to text.contains and text.low-cased couldn't work with a long string
• added todo

[Graur]

@yegor256 uname object is the reason of the pending Windows checks in eo-runtime. I tried to redo it somehow, but didn't reach a success. Only this solution with Java implementation works for me. Can you please take a look and give some feedback?

[yegor256]

@rultor merge

[rultor]

@rultor merge

@yegor256 OK, I'll try to merge now. You can check the progress of the merge here

[rultor]

@rultor merge

@yegor256 Done! FYI, the full log is here (took me 5min)