Merge branch 'master' into 7-soundex-incorrect-calculation

Added Levenshtein, Hamming distance, removed half-done algorithms.

Updated README with instructions of use.
Added the skeleton for DaitchMokotoff.

Algorithm implementation:
* Added Soundex, Fuzzy Soundex, Metaphone, Lein, MRA.
* Added tests for every algorithm.
* Updated Licence.
* Added and tested some utils.

First commit.