BGE Py API

* Removed modules Expression and CValue, neither were ever available.
* Added GameLogic.EvalExpression(exp) from the Expression module, evaluates an expression like the expression controller (not sure if this is really that useful since python is far more advanced).
* resetting the original blend file path didint work (own fault == -> =)
* Py3.x PyModule_Create didnt allow importing since it didn't add to sys.modules,
  Looks like they want us to use init-tab array, but this doesn't suit us since
  it needs to be setup before python is initialized.
* Documented GameLogic.globalDict

source/blender/python/api2_2x/BGL.c

@@ -1104,6 +1104,7 @@ PyObject *BGL_Init(const char *from)
 	PyObject *mod, *dict, *item;
 #if (PY_VERSION_HEX >= 0x03000000)
 	mod = PyModule_Create(&BGL_module_def);
+	PyDict_SetItemString(PySys_GetObject("modules"), BGL_module_def.m_name, mod);
 #else
 	mod= Py_InitModule(from, BGL_methods);
 #endif

source/blender/python/api2_2x/Geometry.c

@@ -99,6 +99,7 @@ PyObject *Geometry_Init(const char *from)
 	
 #if (PY_VERSION_HEX >= 0x03000000)
 	submodule = PyModule_Create(&M_Geometry_module_def);
+	PyDict_SetItemString(PySys_GetObject("modules"), M_Geometry_module_def.m_name, submodule);
 #else
 	submodule = Py_InitModule3(from, M_Geometry_methods, M_Geometry_doc);
 #endif

source/blender/python/api2_2x/Mathutils.c

@@ -139,6 +139,7 @@ PyObject *Mathutils_Init(const char *from)
 	
 #if (PY_VERSION_HEX >= 0x03000000)
 	submodule = PyModule_Create(&M_Mathutils_module_def);
+	PyDict_SetItemString(PySys_GetObject("modules"), M_Mathutils_module_def.m_name, submodule);
 #else
 	submodule = Py_InitModule3(from, M_Mathutils_methods, M_Mathutils_doc);
 #endif