IsAnagram logic needs to be fixed

[harsh-athalye]

I think the IsAnagram() method doesn't work as expected. For example, it would fail for the below string combinations ("abc","bbb") or ("acdf", "bcde").

I think a simple LINQ implementation would be easy enough to implement here.
If you like, I could do that and also implement unit tests for it.

[aalhour]

Hi, thanks for your comment. I am well aware of that issue but haven't pushed the new fixes yet. I would like to know your comment regarding the new changes when I push them, so please do keep checking it.

On a side note, I think it would be more meaningful (from an educational standpoint) to have an algorithmic implementation that doesn't depend on LINQ, since you don't exactly know what happens under the hood. :)