================ Revision history ============================================
4.2.1:
 - Fixed armgcc makefiles for mbedtls examples.

4.2.0:
 - Added prs example.
 - Added examples for mbedtls on Pearl, namely mbedtls_aescrypt and
   mbedtls_ecdsa.

4.1.1:
 - No changes.

4.1.0:
 - Initial version.