Cleaning up code to match coding guidelines

helper_scripts/dns_export_to_bind.php

helper_scripts/dns_export_to_bind_retrans_daily.php

helper_scripts/mydns_to_powerdns_migration.php

helper_scripts/recreate_webalizer_stats.php

install/autoupdate.php

install/dist/conf/centos52.conf.php

install/dist/conf/centos53.conf.php

install/dist/conf/debian40.conf.php

install/dist/conf/debian60.conf.php

install/dist/conf/fedora9.conf.php

install/dist/conf/gentoo.conf.php

install/dist/conf/opensuse110.conf.php

install/dist/conf/opensuse112.conf.php

install/dist/lib/centos52.lib.php

install/dist/lib/centos53.lib.php

install/dist/lib/debian40.lib.php

install/dist/lib/debian60.lib.php

install/dist/lib/fedora.lib.php

install/dist/lib/fedora9.lib.php

install/dist/lib/gentoo.lib.php