Simplify Attendance and Punctuality

The existing written policy of "flextime" is uncessarily strict. We want
people to attend standup and to otherwise keep a pretty regular schedule,
communication with the operations team and their team about their schedule.

These changes hopewfully reflect that.
If they *require* time away from work, I can't schedule them during non-working hours. Perhaps:

> Personal issues requiring time away from work should be scheduled to minimize the impact to your team.

?