Merge pull request #4 from MichalPaszkiewicz/gh-pages

Small fix
Merge pull request #5 from MichalPaszkiewicz/gh-pages

Merge
Merge pull request #7 from MichalPaszkiewicz/gh-pages

testing vigenere
Fixing vigenere function
Merge pull request #8 from MichalPaszkiewicz/master

Updating from master