Use present tense in shorter commit message.

Hello Relay Network,

at my new job I learned about "good" commit messages. One thing I
learend is to use "present tense", since that's what git itself is
using in its messages.

http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html

This pull request changes the commit messages to use present tense and
be a bit shorter. Would you like to merge this?

Also what do you think about updating Leiningen vectors in README.md
when present?

Thanks, Roman.