Issue-697 RtPublicKeysITCase.java fixed with new key generation each time when test runs.
Issue-697 RtPublicKeysITCase.java key generation logic fixed according to code-review remarks.
Issue-697 RtPublicKeysITCase.java imports are reordered according to qulice requirements.
Merge branch 'master' of github.com:aistomin/jcabi-github into Issue-697
Merge pull request #749 from aistomin/Issue-697

#749: pull request Issue-697 RtPublicKeysITCase.java fixed with new key generation.