D implementation of Myers Diff, based on port from the Java implementation (https://github.com/RovoMe/JDiff) of Myers Diff algorithm, based on a port from the C# implementation done by Nicholas Butler at http://simplygenius.net/Article/DiffTutorial1 or http://www.codeproject.com/Articles/42279/Investigating-Myers-diff-algorithm-Part-1-of-2 %)