Cleaned up read tag and call tag to compile.

__read.cpp

@@ -1,5 +1,6 @@
 #include "__read.h"
 #include "Exception.h"
+#include <unistd.h>
 #include <fcntl.h>
 #include <stdio.h>
 
@@ -10,7 +11,7 @@ namespace jet {
 	throw coreutils::Exception("file keyword must be specified.");
       if(hasContainer)
 	throw coreutils::Exception("read tag does not have a container.");
-      fd = open(variables["file"], O_RDONLY);
+      fd = open(variables["file"].c_str(), O_RDONLY);
       while(len = read(fd, &buffer, sizeof(buffer - 1))) {
 	 buffer[len] = 0;
 	 out << buffer;