Update version number.
(timeclock-modeline-display): Mention timeclock-use-display-time
in explanatory message.
(timeclock-in): Fix non-interactive workday specifications.
(timeclock-log): Don't kill the log buffer if it already existed.
Suppress warnings when finding the log. Don't check for a nil
project twice. Run hooks after killing the buffer (if applicable).
(timeclock-geometric-mean): Rename to `timeclock-mean' (it never
was geometric). All uses changed.
(timeclock-generate-report): Support prefix argument.