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

This substantially eases enabling/disabling distributed compiling
For example,
 - export WM_HOSTS="host1:N ... hostN:N"  as usual
 - simply set/unset WM_SCHEDULER

etc/aliases.{sh,csh} added aliases for enabling/disabling wmakeScheduler
 - alias wmSchedON='export WM_SCHEDULER=$WM_PROJECT_DIR/wmake/wmakeScheduler'
 - alias wmSchedOFF='unset WM_SCHEDULER'

Removed wmakeLockScheduler, identical to wmakeScheduler except a 'sleep'

  * use $WM_THIRD_PARTY_DIR variable in top-level Allwmake
  * test new shell idiom for Allwmake files:
        # run from this directory only
        cd ${0%/*} || exit 1
    this might be especially useful when building optional components

  * 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