Add millisecond resolution to log timestamps

Add millisecond resolution to log timestamps

This change adds millisecond resolution to the timestamp written
on RMR stderr messages.

The change also allows the verbose control file specified by the
environment variable RMR_VCTL_FILE to be created and populated
after the application starts. In addition, if no variable is
supplied, RMR will now use a default control file (/tmp/rmr.v)
to allow debugging to be enabled without requireing an application
restart.

Issue-ID: RIC-627

Signed-off-by: E. Scott Daniels <daniels@research.att.com>
Change-Id: I207150679370add11fcdeef381ff453b28e701db