u1sdtool sends unnecessary dbus msgs to syncdaemon

[Jesper R]

When I was generating data for https://bugs.launchpad.net/ubuntuone-client/+bug/673619 I noticed that u1sdtool seems to try to contact syncdaemon even if it is run without any arguments, where it should only print out help/usage. This is seen in the invocation in the log file where it takes 25secs before it prints out the help/usage. The invocation was done right after a reboot where syncdaemon was busy doing a local rescan. When syncdaemon was down to ~0,5s

What ever message it sends to syncdaemon when called without any argument, it apparently is enough to start it if it is not running or has crashed

Also when trying to get syncdaemon status during its initial rescan the u1sdtool will throw an error (seems like manhandled timeout) after 50s as seen in the enclosed transcript as well.

Don't mind many of the comments in the file they are meant for the other bug report.

[Roman Yepishev (rye)]

This is the result of:

    if not is_running() and not options.quit and not options.start:
        d = sync_daemon_tool.start()

We should check that we really have something to do before starting syncdaemon.