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/solvers/multiphase/interPhaseChangeFoam/interPhaseChangeDyMFoam/interPhaseChangeDyMFoam.C

@@ -104,7 +104,7 @@ int main(int argc, char *argv[])
         #include "CourantNo.H"
         #include "setDeltaT.H"
 
-        runTime++;
+        ++runTime;
 
         Info<< "Time = " << runTime.timeName() << nl << endl;
 

applications/solvers/multiphase/interPhaseChangeFoam/interPhaseChangeFoam.C

@@ -80,7 +80,7 @@ int main(int argc, char *argv[])
         #include "CourantNo.H"
         #include "setDeltaT.H"
 
-        runTime++;
+        ++runTime;
 
         Info<< "Time = " << runTime.timeName() << nl << endl;