Fix RubyString#unpack Drective H,h,B,b bugs
Update release-notes
Modify RubyKernel#p behavior toward primitive arrays
Change RubyArray#copyOf(List) to RubyArray#copyOf(Iterable)
Update README.md
Update JavaDoc
[maven-release-plugin] prepare release rubycollect4j-1.7.3
[maven-release-plugin] prepare for next development iteration
Merge branch 'develop' into lambda

Conflicts:
	README.md
	pom.xml