Bump version to 9.0

Bump version to 8.0

Bump version to 7.2

Bump version to 7.1

Bump version to 7.0

libutils: make ceiling_log2() inline

f3probe: avoid hanging before the second reset

f3probe was writing too many blocks between
the first and the second reset due to
a poor estimate of the writing and reseting times.

Bump next version to 4.0

Given that support for FreeBSD was added,
the next release will no longer be 3.1, but 4.0.

f3read: fix for Windows/Cygwin

Windows requires that the file descriptor passed to fdatasync(2)
to be writable.

Tom Hall reported the issue and proposed the solution.

Increment version to 2.2