Updated Travis-CI config with Coverity addon
Fix deprecated references to POLARSSL_CONFIG_OPTIONS
Fix typo in debug_print_msg()
Fix to Coverity config in Travis-CI
Fix minor comment typo
Add (placeholder) CCM module
Add ccm_init/free()
Add ccm_encrypt_and_tag()
Add NIST CAVS 11.0 test vectors for AES-CCM

Since there are 2160 test vectors fro encryption, which is a lot,
only the first one (out of ten) for each length quadruple was kept.
Refactor to prepare for CCM decryption
Implement ccm_auth_decrypt()
Add test for length checks
Use tighter buffers in CCM test suite
Add CCM to benchmark
CCM source cosmetics/tune-ups

- source a bit shorter
- generated code slightly smaller
- preserving performance
CCM operations allow input == output
Add test vectors for Camellia-CCM
Add cipher_crypt()
Use cipher_crypt() in ssl_tls.c
Add cipher_auth_{en,de}crypt()