(Bluefox) Fix some null pointer errors.

getUrl, match, readdir
Update gismeteo.js
Update gismeteo.js
Update settings.html
Update settings.html
(Bluefox) fix ping adapter.
(Bluefox) check localhost address.
Update ccu.io.Lang.js
(Bluefox) Fix german comments
(Eisbaeeer) Check ccu ip address "0.0.0.0"
Merge pull request #127 from hobbyquaker/develop

Develop