Correct behavior
Increase API flexibility
[maven-release-plugin] prepare release rubycollect4j-1.7.2
[maven-release-plugin] prepare for next development iteration
Merge branch 'develop' into java8

Conflicts:
	src/main/java/net/sf/rubycollect4j/RubyArray.java
	src/main/java/net/sf/rubycollect4j/RubyEnumerable.java