[maven-release-plugin] copy for tag g414-hash-0.7.3

[maven-release-plugin] copy for tag g414-hash-0.7.2

[maven-release-plugin] copy for tag g414-hash-0.7.1

refactoring kv alignment into variable

adding putIfAbsent() call (thanks to David Stryker for the suggestion\!)

renaming test classes to reflect impl classes

0.4.0: adding more test cases for hash implementations

0.3.0 release : adding higher-perf hash methods (thanks TS\!); fixing…

… bug in HashFile (2GB limit)

adding pom.xml argument for 1024M memory when testing

reformat whitespace