Give RDS copyright to ICCS

RDS P.C. is no longer active and its founders have agreed to passing the
copyright of the source files to ICCS.

private-include/parse_env.h

@@ -1,5 +1,5 @@
 /*
- *   Copyright RubberDuck Software P.C.
+ *   Copyright Institute of Communication and Computer Systems (ICCS)
  *
  *   Licensed under the Apache License, Version 2.0 (the "License");
  *   you may not use this file except in compliance with the License.

private-include/slab.h

@@ -1,5 +1,5 @@
 /*
- *   Copyright RubberDuck Software P.C.
+ *   Copyright Institute of Communication and Computer Systems (ICCS)
  *
  *   Licensed under the Apache License, Version 2.0 (the "License");
  *   you may not use this file except in compliance with the License.

private-include/tls_allocator.h

@@ -1,5 +1,5 @@
 /*
- *   Copyright RubberDuck Software P.C.
+ *   Copyright Institute of Communication and Computer Systems (ICCS)
  *
  *   Licensed under the Apache License, Version 2.0 (the "License");
  *   you may not use this file except in compliance with the License.

src/glibc_hooks.c

@@ -1,5 +1,5 @@
 /*
- *   Copyright Rubber Duck Software P.C.
+ *   Copyright Institute of Communication and Computer Systems (ICCS)
  *
  *   Licensed under the Apache License, Version 2.0 (the "License");
  *   you may not use this file except in compliance with the License.

src/slab/free.c

@@ -1,5 +1,5 @@
 /*
- *   Copyright RubberDuck Software P.C.
+ *   Copyright Institute of Communication and Computer Systems (ICCS)
  *
  *   Licensed under the Apache License, Version 2.0 (the "License");
  *   you may not use this file except in compliance with the License.

src/slab/initialize.c

@@ -1,5 +1,5 @@
 /*
- *   Copyright RubberDuck Software P.C.
+ *   Copyright Institute of Communication and Computer Systems (ICCS)
  *
  *   Licensed under the Apache License, Version 2.0 (the "License");
  *   you may not use this file except in compliance with the License.