fix: references in modular.lib
semphore.c: includes
better explanation for warn-ASSUME
Fix the usage of qsort_r under Mac OS X
Removed unexisting test from list
Removed @FACTORY_INCLUDES@ from lib*-config's cflags

NOTE: this means that the user may need to add factory flags manually
Fix the python cfalgs correction
Update for dependency diagram
Fix loading of dynamic modules
Moved pyobject to a separate directory under Singular/dyn_modules/
BS Support for builtin modules (with-builtinmodules, BUILTIN_LIB)
Update/cleanup for modules: polymake & gfanlib
Renamed modules "call{gfanlib,polymake}" -> {gfanlib,polymake}
Better builtin handling
Moved singmathic into a separate module + Update for dynamic&static version
Separated staticdemo module
Modules should define SI_MOD_INIT(name) as extern "C" + update/cleanup

del: EMBED_PYTHON is not necessary now!
List internal builtins in m4/options.m4
Singular expects all build-in-related mod_init_* functions to be as follows:
'extern "C" int SI_MOD_INIT(*NAME*)(SModulFunctions*);'!
Builtins should be "modules" in order to avoid "lib-" prefix