Added reciprocal_cycles
Added levenshtein-distance
Added word-chains
Merge pull request #80 from Krotos/word-chains

Added word-chains
Merge pull request #78 from aelaa/reciprocal_cycles

Added reciprocal_cycles
Added supremum-syracuse
Merge pull request #81 from Krotos/supremum-syracuse

Added supremum-syracuse
Merge pull request #79 from Krotos/levenshtein-distance

Added levenshtein-distance