Use ::getKarma() inside ::modifyKarma()
Merge pull request #5 from Minnozz/feature-display-karma

Always use (+1, -1) format when displaying karma
Merge pull request #6 from Minnozz/code-improvements

Use ::getKarma() inside ::modifyKarma()
Dump karma changes to the console using std::cout.
Merge remote-tracking branch 'upstream/master'