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.
Daily project standup seems more important than daily office standup.

Putting the standup in this document feels like it is intended to mean "be in the office by standup." Is that the intent?