Clear DefaultBkg to 0 to avoid invalid memory access
Use std vectors to store SCRIPT_VAR arrays
Removed EERIE_SCRIPT::nblvar
Removed NB_GLOBALS global variable
Changed type of SCRIPT_VAR::text from char* to std::string
Avoid clearing variable vectors with memset()
Removed memset of SCRIPT_VAR
Changed type of SCRIPT_VAR::name from char[64] to std::string
Typedef'd std::vector<SCRIPT_VAR> SCRIPT_VARIABLES