Reword a lot of manpage and usage options.
Remove the `-Yg` and `-Y --getpkgbuild` options from documentation and
code as they have moved to `-G` and `--getpgkbuild`.
Update the version in the man page. Because our version is based on our
commit number added a `+` after the version number to indicated that
this is the version the manpage was written at but it also applies to
newer versions.
Added missing `-c --complete` and `-f --fish` options to the manpage.
But left them out of usage.
Added myself to the authors section. I do feel a bit bad about adding
myself and only myself but I thought it was not a good idea to add 20
names and fill up the page. There's currently no rules on who should be
added and not really a huge need for them right now. I guess we can just
add more people when we deem they belong there whatever that criteria
is.
