add rsyslog puppet submodule

Change-Id: Ic9f521010af7b362490ee5b0048e41cf11bfc593
rsyslog: setup default local config that gets us the same config as default from debian

Change-Id: If07ee200e2ae0d9cfaf8e405d6354c80d77330ca
syslog: add rsyslog::snippet to anonymize logs
it is necessary to install the fixed package from the leap.se repository until it is available in wheezy-backports, so install the apt preferences to pull it from there, and add its necessary library dependency from wheezy-backports

Change-Id: I379ff2ceaac1a978143715d3a7ced0011ca0d747