This reverts commit 7446cee7.

 Added doc/Doxygen/tools/find-debugNames to help but the problem requires
 more attention (Henry/Andy/Mattijs?)
 Caveat:
   - names defined with nested defines will be missed.
   - names defined via typename will be missed.

Cleanup example:

#!/bin/sh
(
cd $WM_PROJECT_DIR
doc/Doxygen/tools/find-debugNames|tee debugs.orig|sed -e 's@ *//.*$@@'>debugs
diff -uw etc/controlDict debugs > debugs.diff
echo "hand-resolve the conflicts - see debugs.diff"
)

  * prefix internal functions with _foam to prevent collisions
  * cleanup functions after use
  * centralized FOAM_VERBOSE info to etc/{bashrc,cshrc}

  * prefix internal functions with _foam to prevent collisions
  * cleanup functions after use
  * centralized FOAM_VERBOSE info to etc/{bashrc,cshrc}

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'

Changed WM_THIRD_PARTY to WM_THIRD_PARTY_DIR and added to all 'options' files that use third-party software.

MPI_ARCH_PATH environmevt variable.

Stop tracking files in src/other (moved to ThirdParty).