Use existing static.zip when update isn't verified.

cbugg: close bug-590
Forgot to take out my "broken sha" test data.

I was testing an impossible sha to validate what would happen when the
server sends something wrong instead of trying to build a proper unit
test for that code.  After I confirmed it did the right thing, I didn't
put it back.

cbugg: close bug-590
Less log spam due to chart animation REST gets.
Using rings to limit # of errs and logs.
TestRingConversions().
Flag -file-service-workers.
Follow xxx_unlocked() naming convention.
TODO comment on less memory-intensive reduce.
Removed CHANGES_SINCE / vbChangesSince.

Since it'll be replaced by TAP / UPR one day.
TODO comment.
Log when we finish loading the static data.
Allow the server to function with no UI.
Updated createbuckets with 8091 default port.
A bucket knows its name.
TAP partition change emits bucket name.
TestServerStats().
TestServerStatsSnapshot().
TestRestGetStats().
TestInitAdmin().
go fmt