single line AED progress log

[matthipsey]

In the current code, the progress of AED looks like:

t = 01/05/2013 15:00:03.  dt =   6.410 /  1.282 s.  elapsed time =      97.6 s.
    Calling AED. t = 01/05/2013 15:00:03.
     START do_aed_models
     Finished AED step
    Returning from AED.
    Writing NETCDF output. t = 01/05/2013 15:00:03.

Can we change the progress to be on a single line such that It says:
**Start do_aed_models .......... done **

Here each . could refer to completion of a major logic block in the do_aed_models function

libaed-fv/src/fv_aed.F90

Line 1230 in ce733d7

print *," START do_aed_models"