Issue #689 Fixed visibility of classes as defined by VisibilityTest
Merge remote-tracking branch 'origin/master' into 689

Conflicts:
	src/main/java/com/jcabi/github/RtForks.java
	src/main/java/com/jcabi/github/RtPublicKey.java
	src/main/java/com/jcabi/github/RtPublicKeys.java
Merge pull request #732 from carlosmiranda/689

#732: pull request Issue #689 Fixed visibility of classes as defined by VisibilityTest