openssh: two more unneeded directives removed.
butch-relocate: use new copy strategy for var and etc as well
Merge remote-tracking branch 'n0v/sshd_cleanup'
python: bump to 2.7.6
postfix: simplify config file handling

the manual workarounds to not overwrite existing configs are no
longer necessary.
openssh: fix destination path
wpa-supplicant: remove obsolete /etc handling