Updated to most recent version of vicious
Restored click-for-calendar to the clock widget
Got rid of old duplicate icons I didn't realise were still hanging around
Changed a line in theme.lua to improve portability (trying to avoid absolute
paths as much as possible)
Added arrow files

(from the powerarrow theme https://github.com/romockee/powerarrow and/or
https://github.com/esn89/powerarrow )
Better textclock

The textclock now has both the long format on hover and click-for-calendar
that the obvious widget had. I've also added arrows from the powerarrow theme,
with some intention of adding more (perhaps not as many or as colourful as in
that theme though).