- solves problems that can occur when checking $PWD and links are involved

- simplified the logic
- provide direct link to the respective scripts
- provide help from the respective scripts

- compile into linux64Gcc44, linuxGcc44 to avoid clashes during testing
- continue to use gmp-4.2.4 since gmp-4.3.x might be miscompiled with
  a system gcc-4.3.2

- search for 'lnInclude' rather than 'Make' by default
  This gives better general behaviour for rebuilding.

- update foamPack* scripts accordingly

- skip including java rather than having recursive includes
  (and too many files open error) when WM_JAVAC_OPTION isn't defined.

- 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.