GitLab

Detail:
  * Fixed dependencies for debug builds in GNUmakefiles/CApp
  * Added -f switch to rm in GNUmakefiles/StdTools to make it fail silently
    if the file doesn't exist, like the RISC OS version
  * Fix for amu complaining if INSTTYPE is undefined in Makefiles/CApp
  * Reflected makefile changes in resgen, squeeze and xpand in CTools
    component file
  * Added a8time to ModuleDB and CTools component file
Admin:
  Tested in  a C Tools build

Version 5.03. Tagged as 'BuildSys-5_03'