sliced fields.

  * output full file path
  * some preliminary file edits to restore 80-col max.

  * should gzstream move to ThirdParty?

  * some warnings were spurious with gcc-4.3.0, but gcc-4.3.1 correctly
    flagged these problems:
    - processorLduInterfaceTemplates.C

  * new -srcDoc option to display doxygen-processed source code
  * display standard options -help/-doc/-srcDoc at end of usage
  * consolidate code when writing IOobject headers
  * drop writeLogbanner and add optional bool to writeBanner
  * minor formatting changes

 * finally removed #ifdef's with old merge method
 * use autoPtr::ptr() instead of autoPtr::() to reduce cloning
 * eliminated a few add() methods that are covered by the templated form
 * added a 'set()' method that forces overwrite - symmetric with HashTable

  * added '#remove' function
  * changed insert() method name to more general execute()
  * using #inputMode or #remove within a primitiveEntry now provokes an error
  * adjusted the dictionaryTest accordingly

  * skip doxygen docs for local variables (treeBoundBox)
  * filter transforms 'Typedef' -> @typedef
  * added tools/find-retagged
  * manually changed some InClass tags to Typedef - still needs more attention

* Now that the expansion of FOAM_CASE is delayed in the boundary conditions,
  the old expansion is simpler and seems to work better with IOobjects.