With this commit, it is possible to provide a list of formats for the
clock module. You can cycle through these different formats with the
mousewheel. It is backward compatible.
This commit introduces the ability for i3pystatus clock to display the
time depending on different timezones. You can set the timezone as
described on the data linked on http://www.iana.org/time-zones.

For instance:
status.register('clock',
format=[("%a %X",'Europe/Dublin'),("%X",'Europe/Paris')]
)
Merge pull request #115 from teto/scroll_time_formats

With this commit, it is possible to provide a list of formats for the