ENH: improve controls for Time (issue #910)

- relocate some standard functionality to TimePaths to allow a lighter
  means of managing time directories without using the entire Time
  mechanism.

- optional enableLibs for Time construction (default is on)
  and a corresponding argList::noLibs() and "-no-libs" option

STYLE:

- mark Time::outputTime() as deprecated MAY-2016

- use pre-increment for runTime, although there is no difference in
  behaviour or performance.

applications/utilities/parallelProcessing/redistributePar/redistributePar.C

@@ -1156,7 +1156,7 @@ autoPtr<mapDistributePolyMesh> redistributeAndWrite
 
     if (!overwrite)
     {
-        runTime++;
+        ++runTime;
         mesh.setInstance(runTime.timeName());
     }
     else