Pythonbrew path.
Fix path; not sure needed.
Needed to fix TypeError -- expected int, got float.  Unable to track
it down, so we'll work around it.
Fix path for css.
Add timetable parameter.
Add print_timetable function.
Correct js path.
Awful hack to get around float error.
Clean up unwanted bits.
Aha!  Got it working:  will print alt/az now and 15 mins from now.

Should be easy enough to extend.
Start printing out a range of times.
Actually print out the calculations.
Use "c" (short for class, but I think it's a Python keyword).
Don't bother if below the horizon.
Fix off-by-one error.
Print time in <th>.  Borked, but on the right track.
Tighten things up a bit.
Arghh, silly error.
Double silly error -- didn't fix both times!
Notes.