cleaned up namespace in GBUdb

GBUdb.cpp

 #include <unistd.h>
 #include "GBUdb.hpp"
 
-using namespace std;
+namespace cd = codedweller;
 
 //// Handy utilities...
 
     }
 }
 
-const RuntimeCheck SaneFileSizeCheck("GBUdbDataset::load():SaneFileSizeCheck(SaneGBUdbFileSizeLimit <= FileSize)");
+const cd::RuntimeCheck SaneFileSizeCheck("GBUdbDataset::load():SaneFileSizeCheck(SaneGBUdbFileSizeLimit <= FileSize)");
 
 void GBUdbDataset::load() {                                                     // Read the GBUdb from disk.
 
     );
 }
 
-RuntimeCheck GoodTimestampLength("GBUdb.cpp:getTimestamp snprintf(...) == CorrectTimestampLength");
+cd::RuntimeCheck GoodTimestampLength("GBUdb.cpp:getTimestamp snprintf(...) == CorrectTimestampLength");
 char* getTimestamp(char* TimestampBfr) {                                        // Creates an ISO GMT timestamp.
 
     time_t rawtime;                                                             // Get a timer and