instead of `remote update`. Both behave the same way, fetching from all
configured remotes. The `fetch --all` is shorter, and probably more
familiar. See https://stackoverflow.com/a/17512004/2654518
Also change `;` to `&&`, so merge is only called after fetch succeeded.
Closes#196
truncating at character 60. First 10 chars are used for `*`, commit
hash and spaces.
The 50 char limit is based on
http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html
Also changed aliases to use the `--long-option` format when available,
so aliases are clearer for those unfamiliar with the options.
Closes#196