rewrite of configuration of the interfaces the webif will bind to

rewrite of configuration of the interfaces the webif will bind to
- default is only one entry with 0.0.0.0:80 and without any auth
- its now possible to bind as much interfaces as someone like
- the user can choose between the special devices 0.0.0.0, 127.0.0.1 and all normal configured network devices
- in each so called interface can be configured individualy (adress,port,auth,disabled or not)
- all configurations are saved in normal e2 setting, so is supported by the backup-plugin
* webif-version-string was increased to 0.99
* skins has to be readapt, due to new or harmonized skin tags in Configurationscreens
* author has to learn how to write non pussy english