#t and #f added to language, datetime fixes

ml_io.cpp

@@ -23,12 +23,14 @@ std::string read_file_contents(const std::string &filename) {
 	return contents;
 }
 
-int write_file_contents(const std::string &filename, const std::string &content) {
-	std::ofstream f;
-	f.open(filename.c_str());
-	int result = (f << content) ? 1 : 0;
-	f.close();
-	return result;
+bool write_file_contents(const std::string &filename, const std::string &content) {
+	std::ofstream f(filename.c_str());
+	if (f) {
+		f << content;
+		f.close();
+		return true;
+	}
+	return false;
 }
 
 MlValue list_dir(const std::string &path) {