Merge commit 'f6080b8' into dtls
* commit 'f6080b8':
Fix warning in reduced configs
Adapt to "negative" switch for renego
Add tests for periodic renegotiation
Make renego period configurable
Auto-renegotiate before sequence number wrapping
Update Changelog for compile-option renegotiation
Switch from an enable to a disable flag
Save 48 bytes if SSLv3 is not defined
Make renegotiation a compile-time option
Add tests for renego security enforcement
Conflicts:
include/polarssl/ssl.h
library/ssl_cli.c
library/ssl_srv.c
library/ssl_tls.c
programs/ssl/ssl_server2.c
tests/ssl-opt.sh