Minor updates:

- JSONparseCore:
  - Set File mode on create
- SelectableCore:
  - Check pipe() return value on create
  - Validate replacement of stdin with pipe

JSONparseCore.cpp

@@ -105,7 +105,7 @@ bool CJSONparse::WriteToFile( const char * BasePath, const char * FilePath, cons
     }
 
     // Open file
-    if ((Handle = open( FilePath, O_CREAT|O_WRONLY|O_TRUNC )) < 0) {
+    if ((Handle = open( FilePath, O_CREAT|O_WRONLY|O_TRUNC, 660 )) < 0) {
         Error = true;
         sprintf( ErrorText, "Could not open file" );
         return false;