postfix: docs are wrong, loglevel must be >= 1
add Openswan
Merge pull request #46 from oglueck/master

add Openswan
Merge branch 'master' of github.com:BetterCrypto/Applied-Crypto-Hardening
and adjust the LaTeX code

Conflicts:
	src/practical_settings/mailserver.tex
	src/practical_settings/vpn.tex