Standardized the naming of functions which control the writing of fields etc.

to have the prefix 'write' rather than 'output'

So outputTime() -> writeTime()

but 'outputTime()' is still supported for backward-compatibility.

Also removed the redundant secondary-writing functionality from Time
which has been superseded by the 'writeRegisteredObject' functionObject.

tutorials/mesh/refineMesh/refineFieldDirs/system/controlDict

@@ -33,13 +33,6 @@ writeInterval   1;
 
 purgeWrite      0;
 
-
-//- Uncomment to have regular (every 2 hours of run time) restart files
-//secondaryWriteControl    cpuTime; // runtime
-//secondaryWriteInterval   7200;    // seconds
-//secondaryPurgeWrite      1;       // keep all but last dump
-
-
 writeFormat     binary;
 
 writePrecision  8;