- change name of environment variable from $WM_OS -> $WM_OSTYPE
  as a better description

- place wmkdep and dirToString executables under
  utilbin/$(WM_ARCH)$(WM_COMPILER).
  This helps somewhat when copying rules about, and might help when creating
  general rules.

- added rules for gcc-4.3 in preparation for switching to gcc-4.4

- added 'clean' target for wmake/src/Makefile
  It is probably reasonable to separate the binaries from the rules (TODO)

	modified:   SiCortex64Gcc/cOpt
	modified:   SunOS64Gcc/cOpt
	modified:   linux64Gcc/c++Opt
	modified:   linux64Gcc/cOpt
	modified:   linux64Gcc/general
	modified:   linux64Gcc42/c++Opt
	modified:   linux64Gcc42/cOpt
	modified:   linuxGcc/c++
	modified:   linuxGcc/cDebug
	modified:   linuxGcc/general
	modified:   linuxIA64Gcc/cOpt

- this seems to be the most sensible solution.
  The changed time stamps on the links doesn't seem to bother make at all.

Changing template-depth back to 40.  Adding initialisation functions and constantProperties construction.

Adding relaxation calculation that adjusts to changes in runTime controls during a run.  Experimenting with primary alignment rotations to achieve boundary alignment.  Altering template depth back to 60 after master merge conflict resolution.

- avoids problems with finding files based on FOAMversion
  (reported by Mattijs)

Changed "flex++" to "flex --c++" to avoid the need to create the link from "flex" to "flex++" after installing "flex".

- if local repo is up to date, HEAD and origin/HEAD are the same
  so id was returned twice

- version is WM_PROJECT_VERSION prefix + SHA1 from current git head
- move double quotes from make rules to global.Cver for extra safety

- added wmakePrintBuild -check, -update, -version options
- only update .build cache when explictly requested and
  from within the wmake Cver rules
- use -check option to avoid unnecessary remake in src/Allwmake

- the $WM_PROJECT_DIR/.build file is automatically updated.
  This file is (and must be) ignored by git.

 - useful for avoiding links on older versions, or for 'hiding' contents

  - send error messages to stderr
  - added -h/-help options where some were missing
  - changed 3-space to 4-space indentation
  - where possible, allow multiple directories from the command-line