Aesthetic fixes

A few minor aesthetic fixes that you should feel free to take anywhere between zero and all of:

- **Don't include time in version headings**, because if you release more than one version a day you're doing it wrong
- **Sort commits and pulls in reverse chronological order**, because that way recent changes appear at the top like recent versions do
- **Show progress when fetching commits** in verbose mode, so it doesn't look like the program has hung