allow overriding our ciphers
make elliptic curve configurable
document new options
csprng -> arc4random
dead prototypes
Merge branch '359-ssl'
Merge branch 'master' of ssh://ssh.poolp.org/git/opensmtpd
Merge branch 'master' into portable

Conflicts:
	contrib/lib/libc/asr/sethostent.c
	smtpd/smtpd.h
sync changes from jmc@
Merge branch 'master' into portable