Fix exec, comments and rsyslog imfile templates for quantum

Workaround for #FUEL-843

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
Fix rsyslog templates to honour rfc3164 & rfc5424 for all logs

Refactor templates to honour message formats

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
Fix title to notify cinder services

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>