Add Java 7 SafeVarargs annotation
Add static factory methods #of, #copyOf to RubyArray and RubyHash
Deprecate RubyCollections#newRubyArray(List, boolean) and
RubyCollections#newRubyHash(LinkedHashMap, boolean)
Remove RubyString#chars
Add more tests
Correct behavior
Increase API flexibility
[maven-release-plugin] prepare release rubycollect4j-1.7.2
[maven-release-plugin] prepare for next development iteration