Made all manufacturer related information configurable:
- manufacturer_name, default is "`uname -s`"
- manufacturer_url, default is URL of OS verndor
- model_name, default is "`uname -s` router"
- model_description, default is "`uname -s` router"
- model_url, default is URL of OS verndor
Merge remote-tracking branch 'upstream/master'
miniupnpd: Make all manufacturer info configurable