small changes
Merge branch 'master' of https://github.com/EVGStudents/VoteVerifier.git
listener pattern modified
Merge branch 'master' of https://github.com/EVGStudents/VoteVerifier.git
Merge branch 'master' of https://github.com/EVGStudents/VoteVerifier.git
helper classes modified
Merge branch 'master' of https://github.com/EVGStudents/VoteVerifier.git
helper classes modified again